BIO EXAM 2 NEW STUDY SET
QUESTIONS AND ANSWERS 2023 UPDATE
What is Science? - Correct Answer-Science is the study of the natural world. Because
all
... [Show More] living organisms are made ofmatter and energy, they are part of the natural world.
What are the characteristics of Life? - Correct Answer-organization, reproduction,
adaption, growth and development, DNA, energy, homeostasis, evolution.
What is Prokaryote? - Correct Answer-Prokaryotes lack a nucleus and organelles.
Reside in the Kingdom Monera.
What is Eukaryote? - Correct Answer-Eukaryote are Organisms with a cell nuclei.
What are the 5 kingdom classifications? - Correct Answer-animal, plant, fungi, protist
and monera.
What is Monera? (5 kingdom classifications) - Correct Answer-comprises bacteria,
some of the oldest, simplest and most successful organisms on Earth.
What is Animalia? (5 kingdom classifications) - Correct Answer-eukaryotic, animals
(humans), heterotrophs (organisms that use organic carbon for growth).
What is Plantae? (5 kingdom classifications) - Correct Answer-eukaryotic,
photosynthetic plants.
What is Fungi? (5 kingdom classifications) - Correct Answer-eukaryotic, decomposers
(fungi, yeast, mushrooms).
What is Protista? (5 kingdom classifications) - Correct Answer-eukaryotic protozoa,
algae, slime molds unicellular, and simple multi-cellular.
What Makes Humans Different? - Correct Answer--Bipedalism - walk on two legs.
-Opposable thumbs - only humans have fine motor skills.
-Large brain - in relation to body size.
-Capacity for complex language.
What is the smallest unit of life? - Correct Answer-A cell.
What is a Tissue? - Correct Answer-an association of cells with the same general
structure and function.
What is an organ? - Correct Answer-an association of several tissue types that carry out
a specific function.
What is an organ system? - Correct Answer-two or more organs that work together.
Steps in Scientific Method. - Correct Answer--Observation and generalize
-Problem or Question
-Hypothesis, Cannot be proved only supported or rejected
-Testable Prediction
-Experiment or Test
-Analyze Data
Variables are factors that can ? in an experiment. - Correct Answer-Change.
What is an indpendent variable? - Correct Answer-is the variable that is changed or
controlled in a scientific experiment to test the effects on the dependent variable.
What is a dependent variable? - Correct Answer-the variable being tested in a scientific
experiment.
What are controlled variables? - Correct Answer-All of the factors that are the same in
an experiment.
For a controlled experiment, what is a Large sample? - Correct Answer-Large sample
sizes reduce sampling error, making it more likely that the differences between the
control and experimental will be significant.
What is the Experimental group in a controlled experiment? - Correct Answer-The group
that receives the treatment in an experiment.
What is the Control group in a controlled experiment? - Correct Answer-A control group
in an experiment does not receive the treatment. it serves as a comparison group for
the treatments.
What is placebo in an experiment? - Correct Answer-an inactive substance that looks
like the drug or treatment being tested.
Steps in a Controlled experiment. - Correct Answer-1. Large sample
2. Randomly divided pool of subjects
3. Experimental group
4. Control group
5. Subjects in both groups are treated the same
6. Expect the experimental groups received the treatment/drug
7. Control group receives as placebo and are considered a blind study/double blind if
neither know
What is a theory? - Correct Answer-A theory is a principle formed to explain the things
already shown in data.
What is a hypothesis? - Correct Answer-A hypothesis is an assumption made before
any research has been done.
Steps in Theory vs. Hypothesis. - Correct Answer--Broad
-Be extensively tested
-Supported over time
-Explain a broad range of facts
-Have a high degree of reliability
Science is limited to? - Correct Answer-physical explanations for observable events in
the natural world.
Science cannot alone provide us with the "right" answers to? - Correct Answer-political,
economic, social, legal, or ethical dilemmas.
Science helps us to make? - Correct Answer-informed choices.
definition of metabolism and what that means in humans. - Correct Answer-the chemical
reactions in the body that build and break down molecules.
Ex- Cells need energy to function. If a person is eating something that has sugar, the
sugar molecules get broken down into simpler molecules and that releases energy.
Review biological organization order (sequence from least to most complex). - Correct
Answer-organelle, cells, tissues, organs, organ systems, organisms, populations,
communities, ecosystem, and biosphere.
define scientific theory. - Correct Answer-A well-tested explanation that unifies a broad
range of observations and hypotheses and that enables scientists to make accurate
predictions about new situations.
difference between causation and correlation. - Correct Answer--correlation is the
relationship between things that happen or change together.
-Causation is the act or process of causing something to happen or exist.
importance of statistics. - Correct Answer-They can be used to determine whether any
observed differences between two groups are real or a result of chance.
All living things are composed of - Correct Answer-cells and cell products.
A single cell is - Correct Answer-the smallest unit that exhibits all the characteristics of
life.
Cells are classified according to their - Correct Answer-internal organization.
All cells are surrounded by - Correct Answer-an outer plasma membrane.
Continues... [Show Less]