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BIOL 180 / BIOL180 QUIZ BANK - QUIZ 1 - QUIZ 7
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BIOL 180 / BIOL180Quiz 1
Question 1 of 33 3.0 Points What is the first step in the scientific process? • A. Hypothesis formation • B. Prediction • C. Data c... [Show More] ollection • D. Observation Feedback: Great job. Question 2 of 33 3.0 Points What is an example of a response to stimuli in a living organism? • A. A plant bending towards the sun • B. A fungi crawling away from a person • C. A bear hibernating in the winter • D. A bacteria taking up nutrients from the soil Feedback: Great. Question 3 of 33 3.0 Points What is the correct order from highest level to lowest level of taxonomic hierarchy? • A. Species, genus, family, order • B. Order, family, genus, species • C. Genus, species, order, family • D. Family, order, genus, species Feedback: Great. Question 4 of 33 3.0 Points What is adaptation due to? • A. altering reproduction from single to multi-cell • B. a consequence of evolution by natural selection • C. response to touching a thorn on a plant • D. a change in eating habits due to health issues Feedback: All living organisms share several key characteristics that define life; adaptation is one of them. For more information, see properties of life in Chapter 1. Question 5 of 33 3.0 Points Which type of science seeks to use science to solver real-world problems? • A. basic • B. natural • C. applied • D. empirical Feedback: Great. Question 6 of 33 3.0 Points Which scientific name is written in the proper format? • A. Homo sapiens • B. Homo Sapiens • C. Homo sapiens • D. Homo Sapiens Feedback: Great job. Question 7 of 33 3.0 Points What is the main reason offspring will belong to the same species as the parents? • A. They share the same environment. • B. They share the same genes. • C. They share the same food. • D. They share the same habitat. Feedback: Great. Question 8 of 33 3.0 Points What process do scientists use as a way to perform research with defined steps that include experiments and careful observation? • A. A clean lab bench • B. A journal article • C. The scientific method • D. The right hypothesis Feedback: Great job. Question 9 of 33 3.0 Points Which statement would be a hypothesis using the scientific method? • A. If my sprinklers are not working, then my flowers will also die. • B. Why isn’t my grass growing? • C. My grass is not growing. • D. I turn on my sprinklers. • E. There must be something wrong with my sprinkler. Feedback: Remember, the hypothesis works to answer your question, and a prediction is based on the hypothesis, so they may sound similar. Review the scientific process in Chapter 1. Question 10 of 33 3.0 Points What is the term for an organisms' ability to maintain constant internal conditions even when environmental conditions change? • A. Homeostasis • B. Equilibrium • C. Equality • D. Centered Feedback: Great. Question 11 of 33 3.0 Points Which type of science seeks to expand knowledge regardless of the short-term application of that knowledge? • A. empirical • B. basic • C. natural • D. applied Feedback: Great. Question 12 of 33 3.0 Points Which is a single cell that lacks membrane bound organelles? • A. Nucleolus • B. Prokaryote • C. Ribosomes • D. Eukaryote Feedback: Great. Part 2 of 5 - Part 1: Text Material - B 36.0 Points Question 13 of 33 3.0 Points What are the four evolutionary forces that would disrupt population Hardy-Weinberg equilibrium? • A. photosynthesis, cellular respiration, behavior, and mutation • B. sexual selection, natural selection, competition, and convergence • C. migration, mutation, genetic drift, and natural selection • D. behavior, non-assortative mating, divergence, and equilibrium Feedback: Great job. Question 14 of 33 3.0 Points What is one of the three principles that results in natural selection? • A. Characteristics are inherited from parent to offspring. • B. Resources are unlimited and arise from the endless supply of energy from the sun. • C. Individuals in a population have the same ability to survive and reproduce. • D. Inheritance of acquired characteristics creates a strong evolutionary force. Feedback: Great job. Question 15 of 33 3.0 Points What does the famous quote from Theodosius Dobzhansky “Nothing makes sense in biology except in the light of evolution”? • A. This quote means that all other questions in biology are tied together by the diversification over time from a common ancestor. • B. This quote means that the thermodynamic principles that govern light are important to how organisms have diversified over time. • C. This quote means that since every species eventually goes extinct we must try to understand biology before this happens. • D. This quote means that many questions about evolution are still being answered so we should seek to understand those first. Feedback: Great job. Question 16 of 33 3.0 Points Which situation can result in genetic drift? • A. bottleneck effect • B. rapid adaptation • C. butterfly effect • D. convergent evolution Feedback: Great job. Question 17 of 33 3.0 Points What is a vestigial structure? • A. A trait that results from a particular type of mutation during development. • B. An analogous characteristic that is similar between unrelated species. • C. A physical characteristic that does not have a function but does have a function in ancestral species. • D. An anatomical trait that changes during development from small to large. Feedback: Great job. Question 18 of 33 3.0 Points A classic scientific study showed that crayfish on one side of the isthmus of Panama were more closely related to other species on the other side of the isthmus than to each other. The most likely explanation for this result is: • A. mutation • B. gene flow • C. vicariance • D. dispersal Feedback: The most likely explanation is that a several separation crayfish species were separated by the formation of the isthmus and the then separated populations diverged. Read more in Chapter 11. Question 19 of 33 3.0 Points What is microevolution? • A. due to detrimental effects on fitness. • B. the change that gives rise to new species. • C. the change in allele frequency in a population. • D. the field of study which examine allele frequencies. Feedback: Great job. Question 20 of 33 3.0 Points Homologous structures: • A. result from divergent evolution. • B. occur in unrelated species. • C. evolve from a common ancestor. • D. are a result of the bottleneck effect. Feedback: Great job. Question 21 of 33 3.0 Points What did the modern synthesis add to the theories of Darwin and Wallace? • A. Mechanisms of inheritance of traits. • B. A modern understanding of cellular respiration. • C. A framework for understanding limited resources. • D. The concept of natural selection. Feedback: Darwin and Wallace proposed the process of natural selection but did not understand how traits are inherited. Read more in Chapter 11. Question 22 of 33 3.0 Points What is an example of gene flow? • A. A new purple allele arises in the population by mutation. • B. Purple alleles are introduced into population by migration. • C. In a population flowers that carry purple alleles are pollinated more often. • D. Purple alleles result in allopatric speciation. Feedback: Review Chapter 11. Question 23 of 33 3.0 Points Which of the following is correct? • A. Evolution is a just a theory that has little evidence to support it • B. Evolution is widely accepted based on scientific data and evidence. • C. One important fact of evolution is that organisms evolve on purpose. • D. Since evolution occurred in the past it cannot be studied scientifically. Feedback: Great job. Question 24 of 33 3.0 Points A population of pocket mice has two coat colors: black and brown. There are more black mice on lava rocks where there are hawk predators. This is an example of: • A. Natural selection • B. Macroevolution • C. Genetic drift • D. Mutation Feedback: Mice that are the same color as the rock (black) are able to survive predator attacks better because they are more camouflaged. This is an example of natural selection. Read more in Chapter 11. Part 3 of 5 - Part 2: Lecture 12.0 Points Question 25 of 33 3.0 Points Biology is the study of life, as such it is focused on the things that are living or called what? • A. Inorganic • B. Auxiliary • C. Biotic • D. Vital • E. Abiotic Feedback: Great job! Question 26 of 33 3.0 Points Currently, scientists classify all living organisms into three domains of life EXCEPT which? • A. Mammalia • B. Bacteria • C. Archaea • D. Eukarya Feedback: Great job! Question 27 of 33 3.0 Points A molecular biologist notices something different in the genetic profile of an individual, performs careful research, and thinks he discovers a new gene responsible for high blood pressure in humans. The last step is an example of what part of the scientific method? • A. Observation • B. Experiment • C. Hypothesis • D. Question • E. Conclusion Feedback: Great job. Question 28 of 33 3.0 Points It is important to understand issues of the modern world but separating what in current literature? • A. News articles and social media • B. Interesting articles and boring articles • C. Valid science and pseudoscience • D. Television shows and magic Feedback: Knowing the different between quality research and false information is important to distinguish. See Unifying Theme in Lesson Lecture Part 4 of 5 - Part 3: Lab 12.0 Points Question 29 of 33 3.0 Points Which of the following is the second step in the scientific method? • A. Experiment • B. Prediction • C. Hypothesis • D. Data Analysis • E. Observation Feedback: Correct! The scientific method is a systematic, multi-step process by which scientists test hypotheses. Question 30 of 33 3.0 Points Which scientist is responsible for determining that matter is neither created nor destroyed? • A. Antoine Lavoisier • B. Charles Darwin • C. Gregor Mendel • D. Louis Agassiz • E. Christian Doppler Feedback: This scientist’s work led to the principle in chemistry called Law of Conservation of Mass. Review the various steps of the scientific manuscript from the Week 1 Lab ELF Lesson. Question 31 of 33 3.0 Points Which of the following is considered proper lab attire? • A. Baggy clothing • B. Open-toed shoes • C. Protective eyewear • D. Tank tops • E. Hair down Feedback: Correct! Proper lab attire should include means to protect your skin and eyes, as well as prevent any unnecessary injuries. Question 32 of 33 3.0 Points Which of the following principles is important to drawing scientific conclusions? • A. Imprecision • B. Bias • C. Repeatability • D. Opinion • E. Subjectivity Feedback: Correct! Conclusions about scientific phenomena can be drawn when multiple scientists can reliably repeat the same observations or outcomes to their hypotheses. Part 5 of 5 - Random draw from 180 - 1 Question 4 pts 4.0 Points Question 33 of 33 4.0 Points What is a good basic definition of biology? • A. The science that studies art. • B. The science that studies death. • C. The science that studies chemicals. • D. The science that studies life. • E. The science that studies rocks. Feedback: Great. [Show Less]
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BIOL 180 / BIOL180 quiz 1
BIOL180 - Quiz 1 Attempt 1 Written: Dec 13, 2020 8:40 PM - Dec 13, 2020 9:20 PM Submission View Your quiz has been submitted successfully. Question 1 ... [Show More] 1) What is the correct order from highest level to lowest level of taxonomic hierarchy? Question options: Order, family, genus, species Genus, species, order, family Species, genus, family, order Family, order, genus, species Hide Feedback Great. Question 2 2) Which is a single cell that lacks membrane bound organelles? Question options: Eukaryote Prokaryote Ribosomes Nucleolus Hide Feedback Great. Question 3 3) Which type of science seeks to use science to solver real-world problems? Question options: natural basic empirical applied Hide Feedback Great. Question 4 What process do scientists use as a way to perform research with defined steps that include experiments and careful observation? Question options: The scientific method A clean lab bench A journal article The right hypothesis Hide Feedback Great job. Question 5 What is the main reason offspring will belong to the same species as the parents? Question options: They share the same habitat. They share the same genes. They share the same food. They share the same environment. Hide Feedback Great. Question 6 Which type of science seeks to expand knowledge regardless of the short-term application of that knowledge? Question options: natural empirical applied basic Hide Feedback Great. Question 7 Which statement would be a hypothesis using the scientific method? Question options: Why isn't my grass growing? If my sprinklers are not working, then my flowers will also die. My grass is not growing. There must be something wrong with my sprinkler. I turn on my sprinklers. Hide Feedback Remember, the hypothesis works to answer your question, and a prediction is based on the hypothesis, so they may sound similar. Review the scientific process in Chapter 1. Question 8 What is the term for an organisms' ability to maintain constant internal conditions even when environmental conditions change? Question options: Equality Equilibrium Homeostasis Centered Hide Feedback Great. Question 9 What is an example of a response to stimuli in a living organism? Question options: A bear hibernating in the winter A bacteria taking up nutrients from the soil A plant bending towards the sun A fungi crawling away from a person Hide Feedback Great. Question 10 What is microevolution? Question options: due to detrimental effects on fitness. the field of study which examine allele frequencies. the change in allele frequency in a population. the change that gives rise to new species. Hide Feedback Great job. Question 11 Which of the following is accurate about mutation? Question options: Mutation is the ultimate source of novel variation. Mutation causes gene flow between populations. Mutation alone is a strong mechanism of evolution. Mutation results from bottleneck events. Hide Feedback Although there are many processes that can change allele frequencies in a population, only mutation can result in new variation. Read more in Chapter 11. Question 12 How did Darwin define evolution? Question options: adaptation to climate descent with modification change in allele frequency over time inheritance of acquired characteristics Hide Feedback Great job. Question 13 A classic scientific study showed that crayfish on one side of the isthmus of Panama were more closely related to other species on the other side of the isthmus than to each other. The most likely explanation for this result is: Question options: dispersal mutation gene flow vicariance Hide Feedback The most likely explanation is that a several separation crayfish species were separated by the formation of the isthmus and the then separated populations diverged. Read more in Chapter 11. Question 14 A population of pocket mice has two coat colors: black and brown. There are more black mice on lava rocks where there are hawk predators. This is an example of: Question options: Genetic drift Natural selection Macroevolution Mutation Hide Feedback Great job. Question 15 What is an example of gene flow? Question options: Purple alleles are introduced into population by migration. In a population flowers that carry purple alleles are pollinated more often. Purple alleles result in allopatric speciation. A new purple allele arises in the population by mutation. Hide Feedback Great job. Question 16 What does the famous quote from Theodosius Dobzhansky "Nothing makes sense in biology except in the light of evolution"? Question options: This quote means that since every species eventually goes extinct we must try to understand biology before this happens. This quote means that many questions about evolution are still being answered so we should seek to understand those first. This quote means that all other questions in biology are tied together by the diversification over time from a common ancestor. This quote means that the thermodynamic principles that govern light are important to how organisms have diversified over time. Hide Feedback Great job. Question 17 What is a vestigial structure? Question options: A physical characteristic that does not have a function but does have a function in ancestral species. An analogous characteristic that is similar between unrelated species. A trait that results from a particular type of mutation during development. An anatomical trait that changes during development from small to large. Hide Feedback Great job. Question 18 What is one of the three principles that results in natural selection? Question options: Characteristics are inherited from parent to offspring. Individuals in a population have the same ability to survive and reproduce. Inheritance of acquired characteristics creates a strong evolutionary force. Resources are unlimited and arise from the endless supply of energy from the sun. Hide Feedback Great job. Question 19 Malaria acts as a natural selective agent so that people with what disorder have a survival advantage? Question options: Thalassemia Hemophilia Cystic Fibrosis Fragile X Syndrome Down Syndrome Sickle Cell Anemia Hide Feedback Great job. Question 20 It is important to understand issues of the modern world but separating what in current literature? Question options: Interesting articles and boring articles News articles and social media Valid science and pseudoscience Television shows and magic Hide Feedback Great job. Question 21 A plant physiologist notices a group of trees growing all in one direction, contrary to what she thinks should happen. This is an example of what part of the scientific method? Question options: Conclusion Observation Experiment Question Hypothesis Hide Feedback Great job. Question 22 Which of the following is considered proper lab attire? Question options: Baggy clothing Protective eyewear Open-toed shoes Hair down Tank tops Hide Feedback Correct! Proper lab attire should include means to protect your skin and eyes, as well as prevent any unnecessary injuries. Question 23 Which scientist contributed to the study of geology by studying the movement of glaciers? Question options: Christian Doppler James Hutton Gregor Mendel Charles Darwin Louis Agassiz Hide Feedback Correct! This scientist studied glaciation, and his observations led to the discovery of historic ice ages. Question 24 Science relies on all of the following EXCEPT __________. Question options: Data Analysis Facts Logic Bias Hide Feedback Correct! The scientific method relies on fact-based, observable and objective measurements, data and interpretation. Review the various components of "science" from the Week 1 Lab ELF Lesson. ________________________________________ Attempt Score: 63 / 72 - 87.5 % Overall Grade (highest attempt): 63 / 72 - 87.5 % Done [Show Less]
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BIOL 180 / BIOL180 quiz 2
Quiz Submissions - Quiz 2 Your quiz has been submitted successfully. Question 1 When referring to pH, an example of something that is alkaline include... [Show More] s what? Question options: stomach acid baking soda orange juice water Hide Feedback Great job. Question 2 An atom that does not contain equal numbers of protons and electrons is referred to as what? Question options: Carbon dating Ion Bond Electron transfer Hide Feedback Great job. Question 3 If an atom donates an electron, and becomes positive, another atom will accept the electron, and is negative. What is the bond these atoms will form called? Question options: Covalent bond Ionic bond van der Waals interactions Hydrogen bond Hide Feedback Great job. Question 4 Which is one of the most abundant natural biopolymers on Earth, only found in plants? Question options: starch glycogen cellulose chitin Hide Feedback Great job. Question 5 Which is an unprocessed or unrefined source of carbohydrates? Question options: fruit pasta noodles white bread cookies Hide Feedback Great job. Question 6 Which is more likely to dissolve in water? Question options: wax glucose olive oil fat Hide Feedback Great job. Question 7 Practically speaking, a buffer is the reason for what? Question options: Why gardens are a good hobby Why we shouldn't eat white bread Why water tastes different to each of us Why we can ingest acidic substances and not die Hide Feedback Great job. Question 8 What is the reason for chemical bonds between atoms? Question options: A vacancy in the nucleus A full outermost shell A full nucleus A vacancy in the outermost shell Hide Feedback It is the outermost shell that dictates the type of chemical bond that will form. Review chemical bonds in Chapter 2. Question 9 Which type of fatty acid is a solid at room temperature? Question options: unsaturated fatty acid polyunsaturated fatty acid monounsaturated fatty acid saturated fatty acid Hide Feedback Great. Question 10 What term describes the forelimb bones of a bird, bat, horse, whale and human? Question options: synapomorphy analogous homologous apomorphy Hide Feedback Great job. Question 11 Which assumption of cladistics is correctly stated? Question options: There are multiple universal last common ancestors (LUCA). Traits remain homologous and unchanged from one state to another. The polarity of a character state change can be determined. Speciation can produce two to four new species. Hide Feedback There are three primary assumptions of cladistics. Read more in Chapter 12. Question 12 How has molecular systematics changed the how organisms had been classified? Question options: Molecular systematics has confirmed earlier classifications. Sometimes errors are uncovered and taxa are reclassified from molecular systematics. Morphologic homology has allowed for the calibration of a molecular clock. Classification has reverted to the Linnean system based on molecular systematics. Hide Feedback Molecular systematics uses molecular information including DNA sequencing to study the relationships between organisms. Read more in Chapter 12. Question 13 Currently the diversity of all life on earth is contained in 3 domains which are: Question options: Bacteria, Animals, Plants Family, Genus, Species Archaea, Bacteria, Eukarya Phylum, Class, Order Hide Feedback Great job. Question 14 Which is the correct order of classification from largest group to smallest? Question options: Phylum, Kingdom, Domain, Class, Species, Genus, Family, Order Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species Canis, Eukarya, Chordata, Canidae, lupus, Animalia, Mammalia Species, Genus, Family, Order, Class, Phylum, Kingdom, Domain Hide Feedback Great job. Question 15 What is a diagram used to represent evolutionary relationships between taxa called? Question options: systematic phylogeny branch clade Hide Feedback Great job. Question 16 What is the scientific name of wolves in binomial nomenclature? Question options: Canidae Family Mammalia Canis lupus Wolves and Dogs Hide Feedback Great job. Question 17 What term describes the wings of insects, bats, and birds? Question options: apomorphy homologous analogous synapomorphy Hide Feedback Great job. Question 18 What is a group of closely related organisms and their common ancestor on a phylogeny? Question options: synapomorphy outgroup vertebrate clade Hide Feedback Great job. Question 19 Evolutionary change that happens on short time scales from one generation to the next within a population is called what? Question options: Convergent Evolution Natural Selection Macroevolution Coevolution Microevolution Hide Feedback Great job! Question 20 The number of domestic dog varieties on Earth today, produced through artificial selection, is an example of what kind of evolution? Question options: Microevolution Coevolution Convergent Evolution Macroevolution Natural Selection Hide Feedback Artificial selection generally functions on a shorter time scale. Review How Does Evolution Function at Different Scales in the Weekly Lecture Lesson. Question 21 Which is the sole source of novel genetic variation? Question options: mutation gene flow natural selection nonrandom mating genetic drift Hide Feedback Great job! Question 22 Which is NOT considered a component of scientific observations? Question options: Personal beliefs Generation of data Measurability Specialized tools Limitations Hide Feedback Correct! In science, observations lead to the formation of hypotheses and must adhere to specific guidelines to be scientifically credible. Question 23 Which of the following is considered a primary source of research? Question options: Magazines Books Dissertations Blogs Websites Hide Feedback Correct! Primary research is considered original works that have not been interpreted or evaluated by a second party. Question 24 Which of the following is the best scientific question for proposing a hypothesis and designing an experiment on the effect of a drug (Drug X) on decreasing blood pressure? Question options: Should we lower blood pressure? Why is Drug X important to blood pressure? Does Drug X affect blood pressure? How does Drug X affect blood pressure readings? Hide Feedback Correct! Scientific questions should be specific enough that can be measured, tested and verified. ________________________________________ Attempt Score: 60 / 72 - 83.33 % Overall Grade (highest attempt): [Show Less]
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BIOL 180 / BIOL180 quiz 3
Quiz Submissions - Quiz 3 Attempt 1 Written: Dec 27, 2020 8:45 PM - Dec 27, 2020 9:24 PM Submission View Your quiz has been submitted successfully. Qu... [Show More] estion 1 In an electron microscope, what type of cells are used? Question options: live and fresh cells live, processed cells dead, but fresh cells dead, processed cells Hide Feedback Great job. Question 2 If a solution outside of a cell has a lower concentration of solutes inside of a cell, it is referred to as what? Question options: facilitated isotonic hypertonic hypotonic Hide Feedback Osmolarity describes the total amount of solutes dissolved in a specific amount of solution, and can either have more, less or the same amount of solutes. Review passive transport in Chapter 3. Question 3 Cells that communicate with each other by direct contact use what? Question options: central vacuole endoplasmic reticulum intercellular junctions plasma membrane Hide Feedback Great job. Question 4 Light and dissecting microscopes are binocular. What does this mean? Question options: They have one eye piece, and one lens system They have one lens system, that is split for each eye They have two separate lens systems, one for each eye They have two eye pieces, and one lens system Hide Feedback Great job. Question 5 If a substance must move up a concentration gradient, there is an input requirement of what from the cell? Question options: ATP H2O Sugar NaCl Hide Feedback Great job. Question 6 Which structure carries out oxidation reactions that break down fatty acids and amino acids? Question options: mitochondria peroxisomes ribosomes chloroplasts Hide Feedback Great job. Question 7 Why can't cells store extra free energy? Question options: they can store free energy, which is why we are able to survive it would result in a lowering of heat, which would freeze the cells it would result in an increase of heat, which would denature enzymes it would result in a lack of space, which would keep out other molecules Hide Feedback Great job. Question 8 Reactions that absorb free energy are called what? Question options: endergonic exergonic potential kinetic Hide Feedback Great job. Question 9 What kind of metabolic pathway takes small molecules and builds them into larger ones, requiring energy? Question options: metabolism bioenergetics catabolic anabolic Hide Feedback Great job. Question 10 If a molecule binds to an active site in an enzyme, but it is not involved in the reaction and is simply slowing it down, what is it called? Question options: competitive inhibition active site substrate enzyme Hide Feedback Inhibition occurs when a molecule binds to the active site in the enzyme. Review energy and metabolism in Chapter 4. Question 11 What is the term for when an activator binds to an enzyme, which alters the active site so that the substrate is able to bind? Question options: competitive inhibition allosteric activation active site allosteric inhibition Hide Feedback Activation occurs when an enzyme is turned on, and can occur using an alternate site. Review energy and metabolism in Chapter 4. Question 12 What kind of energy does a slow moving wrecking ball contain? Question options: chemical energy kinetic energy heat energy light energy potential energy Hide Feedback Great job. Question 13 During the light-dependent reactions of photosynthesis, what are the two energy-carrier molecules that absorb the energy from sunlight? Question options: ADP and ATP ATP and NADPH ADP and NADPH NADPH and water ATP and water Hide Feedback Great work! Question 14 During the light-dependent reactions of photosynthesis, where does the oxygen come from? Question options: the hydrolysis of water the hydrolysis of glucose the loss of sugar the loss of pigment Hide Feedback Great job! Question 15 What is the cause of the electrochemical gradient in the thylakoid space? Question options: a buildup of hydrogen ions causing a difference in charge across the thylakoid membrane a buildup of glucose causing a difference in the charge across the thylakoid membrane a loss of oxygen through the stomata causing a shortage in the mesophyll cells a loss of carbon dioxide through the stomata causing a shortage in the mesophyll cells Hide Feedback Great job! Question 16 In which plant organ does photosynthesis most commonly occur? Question options: the root the stem the leaf the flower Hide Feedback Great job! Question 17 After a photon strikes photosystem II, photosynthesis is initiated. The energy then travels through the electron transport chain, and pumps what into the thylakoid space? Question options: carbon oxygen hydrogen nitrogen Hide Feedback Great job! Question 18 What is the name of the pigment in plants that absorbs wavelengths from the red and blue portions of the visible spectrum? Question options: chlorophyll a chlorophyll b carotenoids glucose Hide Feedback Great job! Question 19 Why is the mitochondria so important to a eukaryotic cell? Question options: they create energy from basic sugar molecules it is the site of RNA synthesis and DNA storage they are only found in eukaryotes they play a role in protein synthesis they are involved in transport of molecules Hide Feedback Great job! Question 20 What is pili in prokaryotes? Question options: circular pieces of DNA that contain genes but not involved in cell reproduction hair-like structures found on the surface of some prokaryotes area of cytoplasm that contain the DNA molecule made of two lipid layers which make the inside hydrophilic and the outside hydrophobic a long whip-like structure that propels the cell into motion Hide Feedback Great job! Question 21 What is the jelly-like matrix in both prokaryotes and eukaryotes that provides form to the cell and holds many of the organelles? Question options: cytoplasm ribosomes DNA plasma membrane Hide Feedback Great job! Question 22 What is a good generic definition of a hypothesis? Question options: A theory that can easily be proven by conducting a few simple experiments. A combination of politics and scientific research to answer important questions for the general population. An educated guess or expected answer to a scientific question based on prior knowledge and observation. A prediction concerning a natural phenomenon based on personal observations in the natural world. Hide Feedback Correct! Remember, a hypothesis should be based on observation, but should also be objective. Question 23 Charles Darwin's concept of natural selection is said to be what? Question options: Scientific Law Alternative Hypothesis Scientific Theory Null Hypothesis Hide Feedback Correct! Natural selection is a theory, as it explains the why and how behind evolution. Question 24 What is said of the hypothesis if the data gathered in an experiment is what is anticipated? Question options: rejected disproven supported proven Hide Feedback Correct! The scientific method cannot prove or disprove a hypothesis directly. ________________________________________ Attempt Score: 63 / 72 - 87.5 % Overall Grade (highest attempt): [Show Less]
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BIOL 180 / BIOL180 quiz 4
Quiz Submissions - Quiz 4 Attempt 1 Written: Jan 3, 2021 9:12 PM - Jan 3, 2021 9:54 PM Question 1 How is it possible that a person can have blood typ... [Show More] e AA, BO or AB, for example? Question options: there are two alleles, and a person gets all three, but only expresses two there are three alleles, but a person only has two alleles there are three alleles, and a person expresses all three copies there are two alleles, but a person only has one allele Hide Feedback Great job. Question 2 What is the process of cell division called in prokaryotes? Question options: Single mutation Binary fission Double fusion Cytokinesis Hide Feedback Great job. Question 3 What is the term for a cell's complement of DNA? Question options: gamete nucleus chromosome genome Hide Feedback Great job. Question 4 During which stage in interphase does DNA synthesis occur? Question options: Mitosis G2 phase S phase G1 phase Hide Feedback Great job. Question 5 In diploid organisms, chromosomes are in a matched pair. What is the term for these chromosomes? Question options: dissimilar homologous heterologous unrelated Hide Feedback Great job. Question 6 What is the purpose of checkpoints in the cell cycle? Question options: to keep any foreign DNA out of the cell to make the division move faster to maintain protein health in the cell to ensure detrimental mutations are not passed on Hide Feedback Great job. Question 7 Most animals and plants are diploid. What are cells containing two sets of chromosomes are referred to as? Question options: gametes somatic aneuploid polyploid Hide Feedback Great job. Question 8 During meiosis the 23 pairs of human chromosomes assort independently. Approximately how many possible gametes result from a single person? Question options: 23 million 8 million 23,000 8,000 Hide Feedback Great job. Question 9 Humans would best be described as having which of the following life cycles? Question options: diploid-dominant haploid-dominant alternation of generations gametophyte dominant Hide Feedback Great job. Question 10 In what phase of meiosis does Independent assortment of homologous chromosomes occur? Question options: meiosis II interphase meiosis I cytokinesis Hide Feedback Great job. Question 11 What is an individual with an incorrect number (2n-1 or 2n+1) of chromosomes called? Question options: autosome euploid aneuploid polyploid Hide Feedback Great job. Question 12 What is an individual with the correct number (2n) of chromosomes called? Question options: aneuploid autosome euploid polyploid Hide Feedback Chromosomal abnormalities can occur in any species; remember, poly- means more, aneu- means not good and autosomes are chromosomes not associated with sex. Review Chapter 7. Question 13 What is the genetic make-up of an organism is described as? Question options: alleles zygotes genotype phenotype Hide Feedback Great job. Question 14 In a cross between two heterozygous (Aa) individuals, what is the likely percentage of the offspring that will be heterozygous? Question options: 75% 100% 50% 25% Hide Feedback Great job. Question 15 What is incomplete dominance? Question options: in a heterozygote, one trait will conceal the presence of another trait for the same characteristic when in a heterozygote, expression of two contrasting alleles such that the individual displays an intermediate phenotype a phenomenon in which alleles that are located in close proximity to each other on the same chromosome are more likely to be inherited together an interaction between genes such that one gene masks or interferes with the expression of another Hide Feedback Review Chapter 8. Question 16 How many unique gametes could be produced through independent assortment by an individual with the genotype AaBbCc? Question options: 4 8 1 2 Hide Feedback A gamete would receive one copy of each allele – meaning either A or a, B or b, C or c – and the combination of the three is what we are looking for. Review Chapter 8. Question 17 Mendel made crosses between parental lines of pea plants that were homozygous for different alleles of the traits he was studying. When crossing two parents, the F1 generation were all what? Question options: recombinants heterozygous homozygous dominant homozygous recessive Hide Feedback Great job. Question 18 How many unique gametes could be produced through independent assortment by an individual with the genotype AABbCC? Question options: 1 2 8 4 Hide Feedback Great job. Question 19 What is the result of mitosis? Question options: Two cells become four identical cells One cell becomes two identical cells Two cells become four non-identical cells One cell becomes two non-identical cells Hide Feedback Great job! Question 20 What is the theme behind Mendelian inheritance? Question options: Traits are controlled by a single gene, and you get one copy from each parent. All diseases are the result of mutations. Even with peas, color and size are not predictable using a Punnett Square. The majority of traits are recessive, so do not change often. Hide Feedback Great job! Question 21 What is the purpose of a Punnett Square? Question options: it is a way to visualize the phenotype and genotype of a cross it is a way to visualize only the phenotype in a population it is a way to visualize only the genotype of a cross it is a way to visualize the chromosomes in a population Hide Feedback Great job! Question 22 What is the independent variable in the following hypothesis: bacterial growth in an incubator may be affected by temperature? Question options: incubator temperature the affect bacterial growth Hide Feedback Correct! The independent variable is the thing that changes in the experiment, and the dependent variable is what is being measured. Question 23 Which of the following is NOT a reason why Wakefield's study on the connection between autism and vaccinations was flawed? Question options: the study was not replicable the study acquired samples unethically and, quite possibly, illegally the study had a small sample size the authors committed deliberate fraud to support their hypothesis the study demonstrated everyone's well being was taken care of Hide Feedback Correct! There were many errors in Wakefield's study on autism, but considering everyone's health was not one of them. Question 24 Which type of variable does not change during an experiment, and serves as a comparison point for all data points? Question options: independent control random dependent Hide Feedback Correct! There has to be one variable in the experiment that researchers compare the results of the experiment to, so that accurate conclusions can be made. ________________________________________ Attempt Score: 63 / 72 - 87.5 % [Show Less]
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BIOL 180 / BIOL180 quiz 5
Quiz Submissions - Quiz 5 Written: Jan 10, 2021 11:38 PM - Jan 11, 2021 12:22 AM Submission View Your quiz has been submitted successfully. Question 1 ... [Show More] What is a DNA mutation? Question options: a change to the RNA sequence of an individual a method to keep all individuals of a species the same a permanent change in the DNA sequence a mistake in the DNA sequence that can be fixed Hide Feedback Great job. Question 2 What direction do the two strands of DNA run? Question options: anti-parallel perpendicular transversal parallel Hide Feedback Great job. Question 3 What is the most common method for repairing nucleotide errors in DNA? Question options: nucleotide excision repair mismatch repair uracil base replacement thymine dimers Hide Feedback Great job. Question 4 What are the three components needed for protein synthesis? Question options: DNA, lysosome, exon mRNA, DNA, ribosome mRNA, tRNA, ribosome DNA, nucleus, ribosome Hide Feedback Great job. Question 5 How is it possible that each daughter cell during cell replication receives an identical copy of the DNA? Question options: DNA is not identical in every cell, so all daughter cells have different copies DNA is replicated individually in each new cell after meiosis and mitosis DNA is replicated during the synthesis phase of the cell cycle, prior to mitosis or meiosis DNA is replicated following mitosis or meiosis, so is transferred after the new cells are formed Hide Feedback Great job. Question 6 Which statement best describes prokaryotic chromosomes? Question options: Double-stranded, circular Double-stranded, linear Single-stranded, circular Single-stranded, linear Hide Feedback Great job. Question 7 A nucleotide includes all of the following parts EXCEPT? Question options: deoxyribose carbon dioxide nitrogenous base phosphate group Hide Feedback Great job. Question 8 Which nitrogenous base is present in RNA and not DNA? Question options: adenine cytosine uracil guanine thymine Hide Feedback Great job. Question 9 Why does one strand of DNA replicate as a continuous strand, and the other in fragments? Question options: they are parallel, and DNA polymerase can synthesize from 5' to 3' they are parallel, and DNA polymerase can synthesize in either direction they are anti-parallel, and DNA polymerase can only synthesize from 5' to 3' they are anti-parallel, and DNA polymerase can synthesize in either direction Hide Feedback Great job. Question 10 What is an example of a genetically modified organism? Question options: a plant produced through traditional breeding a natural cross between zucchini and acorn squash mating of a horse and donkey to produce a mule a red apple with a gene from another apple cultivar Hide Feedback Great job. Question 11 What is an example of a transgenic organism? Question options: a tomato with a gene for freezing tolerance from fish mating of a horse and a donkey to produce a mule an heirloom tomato variety a traditional breeding project where red and green apples are crossed Hide Feedback Transgenic is the result of foreign DNA that is a different species being transferred by recombinant DNA. Review cloning and genetic engineering in Chapter 10. Question 12 Gel electrophoresis separates charged molecules on the basis of what? Question options: size and charge temperature and shape contents and charge shape and color Hide Feedback Great job. Question 13 The introduction of a non-mutated gene at a random location to cure a disease by replacing a protein is called what? Question options: transgenic organism gene therapy reverse genetics recombinant DNA Hide Feedback Great job. Question 14 What is a basic definition of cloning? Question options: increasing the life expectancy of animals increasing the number of plants creation of a similar copy creation of a perfect replica Hide Feedback Great job. Question 15 Why was Dolly a Finn-Dorset and not a Scottish Blackface? Question options: enucleation occurred with a Scottish Blackface egg the surrogate ewe was a Finn-Dorset the nucleus came from a Finn-Dorset the cytoplasmic donor was from a Scottish Blackface Hide Feedback Great job. Question 16 What do the different bands in the same lane of an agarose gel represent? Question options: similar genetic make up links of protein different organisms different size pieces Hide Feedback Great job. Question 17 What is a plasmid with foreign DNA inserted referred to as? Question options: recombinant DNA restriction DNA foreign DNA host DNA Hide Feedback Great job. Question 18 Why are plants more difficult to make into transgenic species? Question options: presence of cell wall, preventing bacteria mammals are regulated, plants are not they are easier because they don't move the presence of chloroplasts, so photosynthesis is running Hide Feedback Great job. Question 19 Which is a good definition of genetic engineering? Question options: A process to determine the genetic makeup of an individual at a particular location in an individual's DNA an organism that has another species' DNA inserted into its genome using genetic techniques techniques of molecular biology that involves manipulation of genes DNA that contains genes from more than one source Hide Feedback Genetic engineering is a broad term that simply involves manipulation; it is used for other techniques. Review Biotechnology in the Weekly Lecture Lesson. Question 20 Asexual reproduction where the circular chromosome replicates and then the cell membrane and cell wall partition the chromosomes into two new cells is know as what? Question options: Animal reproduction Binary fission Viral integration Plant pollination Hide Feedback Great job. Question 21 Which type of stem cell can only become one specialized type of stem cell, depending on the origin? Question options: somatic embryonic reproductive induced pluripotent Hide Feedback Great job! Question 22 In data measurement, what does precision refer to? Question options: Whether or not a measurement was performed correctly. The number of significant digits in the solution of a mathematical problem How close a measured value is from a standard or established value How close a measured value is to previous measured values Hide Feedback Accuracy refers to how close a measured value is from a standard or established value. Question 23 A digital thermometer is calibrated to be accurate within +/- 0.1 ˚C. Two temperature measurements are then taken that show the temperature is 24.9 ˚C and 25.1 ˚C? Do these measurements agree? Question options: Not enough information is given No Yes Hide Feedback Correct! Yes, the measurements agree. Based on the accuracy of the thermometer, the 24.9 ˚C measurement indicates the temperature can be 24.8 ˚C and 25.0 ˚C and the 25.1 ˚C measurement indicates the temperature can be 25.0 ˚C and 25.2 ˚C. The two measurements together tell us that the temperature is 25.0 ˚C. Question 24 What are quantitative data measurements? Question options: Measurements that are appropriate for any type of variable Measurements of numerical variables and are displayed as numerical values Measurements that are appropriate in all experiments Measurements of categorical variables and can be displayed as types or descriptions Hide Feedback Quantitative data measurements are numerical variables – they provide data that answers questions like "how many" or "how often". ________________________________________ Attempt Score: 60 / 72 - 83.33 % [Show Less]
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BIOL 180 / BIOL180 quiz 6
Quiz Submissions - Quiz 6 Attempt 1 Written: Jan 17, 2021 4:33 PM - Jan 17, 2021 5:18 PM Submission View Your quiz has been submitted successfully. Qu... [Show More] estion 1 Which organelle appears to have come from bacteria? Question options: mitochondria vacuole ribosomes Golgi apparatus nucleus Hide Feedback Great job. Question 2 The community of bacteria in the human body provides benefits EXCEPT? Question options: Maintenance of gut Development of immune system Increase in antibiotic resistance Protection from pathogens Hide Feedback Great job. Question 3 What is an example of a positive relationship between fungi and plants? Question options: mycorrhizae increase nutrient uptake in the soil fungi infecting a potato crop, so that most plants die decay of standing or recently felled trees infection of stored seeds such as corn Hide Feedback Great job. Question 4 What is one reason for a high rate of resistant bacteria on Earth today? Question options: lack of personal hygiene increase in travel decrease in sleep overuse of antibiotics Hide Feedback Great job. Question 5 The mitochondria and chloroplasts appear to have originated from what? Question options: endosymbiosis protists fungi host cell Hide Feedback Great job. Question 6 What type of prokaryote obtains its energy from sunlight? Question options: chemotroph heterotroph phototroph chemoautotroph Hide Feedback Great job. Question 7 Bryophytes include all the following EXCEPT? Question options: mosses hornworts liverworts club mosses Hide Feedback Great job. Question 8 Which of the following are NOT gymnosperms? Question options: conifers bryophytes ginkgophytes cycads Hide Feedback Great job. Question 9 What is the function of phloem cells in vascular tissue? Question options: transport sugars, proteins, and other solutes are only found in roots are only found in leaves transport water and nutrients Hide Feedback Great job. Question 10 Monocots typically lack which of the following? Question options: parallel veins in their leaves a seedling with a single cotyledon a tap root with lateral roots flowers with 3-fold symmetry Hide Feedback Great job. Question 11 If you find a plant with leaves with parallel veins in the leaf, flowers, and fruit, what would it most likely be classified as? Question options: eudicot monocot gymnosperm bryophyte Hide Feedback Great job. Question 12 Mycorrhizae are fungi associated with which plant organ? Question options: leaves fruit roots flowers Hide Feedback Great job. Question 13 Most nematodes have a distinct mouth and anus. What type of digestive system do they have? Question options: complete non-existent convoluted incomplete Hide Feedback Great job. Question 14 All of the following are considered an amniote EXCEPT which? Question options: frog crocodile tautaras turtle bird Hide Feedback Remember, amphibians do not have a terrestrially adapted egg. Review Vertebrates in Chapter 15. Question 15 Which is an example of a Hexapoda? Question options: cockroach spider jellyfish earthworm Hide Feedback Great job. Question 16 How can one distinguish between a protostome and deuterostome? Question options: after death after complete formation of body during the reproductive stage during the embryonic stage Hide Feedback Great job. Question 17 Which is an example of an Annelid that is monoecious with permanent gonads? Question options: crocodile earthworm cuttlefish starfish orangutan Hide Feedback Great job. Question 18 The Porifera have tiny "hairs" on their cells to move water and food thru themselves. What are these "hairs" called? Question options: Cilia Spicules Flagella Membranes Hide Feedback There is one flagellum in a sponge, and its function is to move water through the sponge. Review Sponges and Cnidarians in Chapter 15. Question 19 There are two ways in which non-vascular plants transport water, what is one of them? Question options: diffusion collection scattering concentration Hide Feedback Great job! Question 20 Plants cannot move around to search for water and food; what is the term for this? Question options: sessile vagile unattached pedunculate motile Hide Feedback Great job! Question 21 The major adaptations of plants to living outside of water include protection of embryos, seeds and which of the following? Question options: microphylls, use of diffusion for water transport, spores flowers, megaphylls, creation of vascular tissue use of osmosis for water transport, flowers long root systems, microphylls, creation of veins Hide Feedback Great job! Question 22 What type of chart is a histogram? Question options: Pie Scatterplot Bar Line Hide Feedback Correct! Choosing the most appropriate chart type for displaying data is extremely important as visualizations are critical for decision making and understanding results. Question 23 Which is the best practice for using units of measurement in spreadsheets? Question options: Include units in data cell with the numbers Include units in separate column Include units in the headers Include units in spreadsheet name Hide Feedback Please see section in the lesson titled "Include Units". All measurements require units, and spreadsheets recognize units as text. Unfortunately a data cell in a spreadsheet cannot contain both text and numbers. Given this constraint, what would be the best way to incorporate units in your spreadsheet? Question 24 What are the three chart types most commonly used to visualize and display data? Question options: Line, pie, scatterplot Bar, pie, scatterplot Bar, line, pie Bar, line, scatterplot Hide Feedback Correct! Choosing the most appropriate chart type for displaying data is extremely important as visualizations are critical for decision making and understanding results. ________________________________________ Attempt Score: 63 / 72 - 87.5 % Overall Grade (highest attempt): 63 / 72 - 87.5 % Done [Show Less]
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BIOL 180 / BIOL180 quiz 7
Quiz Submissions - Quiz 7 Written: Jan 20, 2021 5:47 PM - Jan 20, 2021 6:29 PM Submission View Your quiz has been submitted successfully. Question 1 ... [Show More] Which plays a role in masticating food? Question options: kidneys tongue teeth pancreas Hide Feedback Great job. Question 2 What is the momentary change in the electrical potential of a neuron membrane? Question options: bicuspid valve cardiac cycle interstitial fluid action potential Hide Feedback Great job. Question 3 What is the structure responsible for filtering blood containing the metabolic wastes from cells? Question options: kidney liver heart lungs Hide Feedback Great job. Question 4 What is one function of pancreas? Question options: to produce corticosteroids to produce oxytocin to produce insulin to produce testosterone Hide Feedback Great job. Question 5 Which types of vessels return oxygen-poor blood to the heart? Question options: aorta arteries capillaries veins Hide Feedback Great job. Question 6 Where does the majority of fat digestion take place? Question options: esophagus stomach large intestine small intestine mouth Hide Feedback Great job. Question 7 Where does the majority of protein digestion take place? Question options: mouth large intestine small intestine stomach esophagus Hide Feedback Great job. Question 8 What kind of nutrient must be eaten, because it cannot be made by the body? Question options: essential non-essential auxiliary fundamental Hide Feedback Great job. Question 9 What structure stores feces until defecation? Question options: colon rectum anus cecum large intestine Hide Feedback Great job. Question 10 What is another major issue with the current human population growth, in addition to degradation of the natural environment? Question options: lack of food surplus of water increasing soil nutrients excess fossil fuels Hide Feedback Great job. Question 11 The hoverfly, which is harmless, looks very similar to the wasp, which can cause harm. What is this referred to as? Question options: mimicry herbivory predation mechanical defense Hide Feedback Great job. Question 12 Barnacles live on the skin of whales, and catch plankton, etc. while the whale is swimming. The whale is not harmed nor gets any benefit. This is an example of what type of symbiotic relationship? Question options: commensalism mutualism parasitism biodiversity Hide Feedback Great job. Question 13 What kind of survivorship curve would result if a group of organisms is producing few offspring but providing good care so their likelihood of survival is high? Question options: Type III Type IV Type I Type II Hide Feedback Great job. Question 14 What is the maximum population size determined by what a particular environment can sustain? Question options: carrying capacity linear growth exponential growth logistic growth Hide Feedback Great job. Question 15 If the effective habitat size for the sea lion decreases due to urbanization, which would likely occur? Question options: The carrying capacity of the sea lion would remain the same, but the sea lion population would decrease. The carrying capacity would decrease, but the sea lion population would remain unchanged. The carrying capacity of the sea lion would remain the same, and the sea lion population would remain the same. The carrying capacity would decrease, as would the sea lion population. Hide Feedback Great job. Question 16 An oxpecker is a bird that lives on the backs of zebras and eats the parasites. The oxpecker gets food, and the zebra gets pest control. This is an example of what type of symbiotic relationship? Question options: commensalism mutualism parasitism biodiversity Hide Feedback Great job. Question 17 Thorns on a rose are an example of what type of defense to herbivory? Question options: mechanical biological chemical legal Hide Feedback Great job. Question 18 What is the fundamental cause of the accelerated growth rate for humans in the past 200 years? Question options: reduced death rate increased birth rate increased death rate reduced birth rate Hide Feedback Great job. Question 19 What is the maximum number of offspring in a population when resources are not limited? Question options: extinction near vulnerable biotic potential density dependent factors Hide Feedback Great job. Question 20 Which system consists of processes and structures in the body which defend against disease? Question options: respiratory system endocrine system cardiovascular system immune system lymphatic system Hide Feedback Great job! Question 21 Homeostasis is influenced by what kind of feedback mechanism? Question options: positive negative neutral balanced Hide Feedback Great job! Question 22 A data table of the faculty of the university is shown below. What is the total number of female Biological Sciences faculty at the University? Total Female Faculty Total Male Faculty 200 250 University Faculty Female (%) Male (%) Biological Sciences 6 9 Business 2 4 Education 23 7 Engineering 3 11 Fine Arts 9 8 Health Sciences 16 8 Humanities 17 14 Physical Sciences 4 11 Social Sciences 9 13 Other 11 15 Question options: 15 6 11 12 Hide Feedback Correct! Percent composition is a way to express the ratio of a single measurement of the total measurement in a useful value. Percentage = (measured part/total) X 100% Question 23 The following data table indicates the number of hours spent on school work last week. If 4 hours was spent on mathematics, how many hours were spent on all homework assignments? School Work Hours (%) Science 43.75 Mathematics 25.00 History 12.50 Reading 12.50 Art 6.25 Question options: 16 24 8 32 Hide Feedback Correct! Percent composition is a way to express the ratio of a single measurement of the total measurement in a useful value. Percentage = (measured part/total) X 100% Question 24 The following data table indicates number of experiments you ran each day last week. What is the mean (average) number of experiments you ran per day last week? Day Experiments Monday 5 Tuesday 6 Wednesday 2 Thursday 6 Friday 1 Question options: 6 5 4 2 Hide Feedback Correct! Average = total sum of all numbers in set / number of items in set. ________________________________________ Attempt Score: 72 / 72 - 100 % Overall Grade (highest attempt): 72 / 72 - 100 % Done [Show Less]
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