NLN Practice Exam 148 Questions with Answers 2023
1 kilogram (kg) of solid X at 10°C and 1 kg of solid Y at 10°C each absorb 5 joules of heat energy.
... [Show More] The final temperatures of X and Y are 15°C and 20°C, respectively. Compared to X, Y must have a lower
specific heat.
conductive heat.
heat of fusion.
heat of vaporization. - CORRECT ANSWER specific heat.
A drop of dilute ammonium hydroxide (NH4OH) is placed on one side of a slide containing a large number of swimming paramecium. Under this condition, which of these behaviors of the paramecia will be observed?
They will eventually all swim toward the ammonium hydroxide.
They will show no net change in behavior to the ammonium hydroxide.
They will all be instantly killed by the ammonium hydroxide.
They will eventually all swim away from the ammonium hydroxide. - CORRECT ANSWER They will eventually all swim away from the ammonium hydroxide.
A method for determining the blood alcohol content of a subject is to
do a Mantoux test.
do a Dick test.
use a Breathalyzer.
inspect the size of the pupils. - CORRECT ANSWER use a Breathalyzer.
A physician measures the pulse and blood pressure (BP) of all patients on a routine basis. Which of these measurements show the normal BP values for a resting adult patient?
125/95 mm Hg
120/80 mm Hg
100/80 mm Hg
72/120 mm Hg - CORRECT ANSWER 120/80 mm Hg
A woman suddenly chokes on a piece of food and clutches frantically at her throat. An immediate remedy is to
have her bend forward and tell her to cough.
insert a finger or a blunt object toward the back of the mouth.
apply quick, hard pressures successively to her abdomen, just beneath her diaphragm.
phone "emergency" for help - CORRECT ANSWER apply quick, hard pressures successively to her abdomen, just beneath her diaphragm.
An unknown gas is more dense than air, does not support combustion, and turns a limewater solution cloudy. This gas is most probably
ammonia.
methane.
carbon dioxide.
hydrogen. - CORRECT ANSWER carbon dioxide
If the medulla of the brain in a human was damaged, which of these conditions would most likely result?
Inability to remember.
Difficulty in breathing.
Inability to speak.
Blurred vision. - CORRECT ANSWER Difficulty in breathing.
In diagnostic testing, the electroencephalogram permits the physician to
examine the impulses of the specialized muscle cells of the heart.
examine the impulses of the nerve cells within the brain.
measure the pressure within the eye.
measure the amount of air upon exhalation. - CORRECT ANSWER examine the impulses of the nerve cells within the brain.
In ecological succession, the first living thing to colonize a hitherto barren area is called a
producer.
primary consumer.
pioneer organism.
carnivore. - CORRECT ANSWER pioneer organism.
In varieties of matter, the term heterogeneous may be applied to
elements, but not compounds.
compounds, but not elements.
compounds and elements, but not mixtures.
mixtures, but not elements or compounds. - CORRECT ANSWER mixtures, but not elements or compounds.
Periodontitis is an inflammatory condition of the
gum tissue that surrounds the neck of each tooth.
pulp that contains nerve cells and blood vessels of the tooth.
dentin that surrounds the soft part of a tooth.
enamel that provides a hard surface for chewing. - CORRECT ANSWER gum tissue that surrounds the neck of each tooth.
The atoms of an element with seven valence electrons are most probably classified as
metals.
nonmetals.
metalloids.
noble gases. - CORRECT ANSWER metals.
The bending of a wave around an obstacle is known as
diffraction.
deflection.
refraction.
reflection. - CORRECT ANSWER diffraction.
The inherited factors that are transmitted in an organism from generation to generation are called its
homozygote.
heterozygote.
genotype.
phenotype. - CORRECT ANSWER genotype.
The organ that filters metabolic waste from the blood is the
small intestine.
liver.
kidney.
stomach. - CORRECT ANSWER kidney.
The process of nuclear cell division in the cell reproduction of plants differs from mammals. A major difference is that
homologous chromosomes are paired.
centrioles are replicated.
spindle fibers are missing.
cell plates are synthesized. - CORRECT ANSWER homologous chromosomes are paired
In animals, the cell is split from the outside by a contractile ring, forming a cleavage furrow. A layer of actin and myosin filaments underneath the plasma membrane at the cell center begins to contract until the cell is essentially pinched in half. In plants, a new cell wall forms inside the cell that grows outward until the formation of two new cells. The assembly of a new cell wall forms by vesicles filled with cellulose and lignin, which eventually fuse together to create a new cell wall, and the parent cell splits in two.
Which of these conditions is associated with smoking?
Esophageal varices.
Tonsillitis.
Emphysema.
Blindness. - CORRECT ANSWER Emphysema.
Which of these equations best illustrates a synthesis reaction?
2Na + Cl2 -> 2NaCl
NaOH + HCl -> NaCl + H2O
2H2O2 -> 2H2O + O2
CH4 + 2O2 -> CO2 + 2H2O - CORRECT ANSWER 2Na + Cl2 -> 2NaCl
Which of these hydrocarbons is a member of the benzene family?
Toluene.
Ethyne.
Propanone.
Methanol. - CORRECT ANSWER Toluene.
Which of these particles can only be found in the nucleus of an atom?
protons, only.
electrons, only.
protons and neutrons.
neutrons and electrons. - CORRECT ANSWER protons and neutrons.
Which of these sequences of anatomic organization, from the simplest level to the most complex, is the correct sequence?
From tissue, organ, organ system to organism.
From organ system, organ, tissue to organism.
From tissue, organ system, organ to organism.
From organ, organ system, tissue to organism. - CORRECT ANSWER From tissue, organ, organ system to organism
Which of these single instruments may be used to measure the current flowing through a circuit?
A voltmeter.
An ammeter.
A potentiometer.
An ohmmeter. - CORRECT ANSWER An ammeter.
Which of these substances contains a nonpolar covalent bond?
NaCl
HBr
O2
NH3 - CORRECT ANSWER O2
Diatomic oxygen is made up of the same two elements, and they equally share the 4 electrons that make up the double bond between them. They're equally electronegative, which means that there are not any partial charges for each element. Since neither atom pulls harder, it's a non-polar covalent bond.
Which of these temperatures is known as Absolute Zero?
0°C
0 K
positive 273°C
negative 273 K - CORRECT ANSWER 0 K
Which part of the cell structure controls the passage of materials into and out of the cell?
Golgi apparatus.
Ribosome.
Nuclear membrane.
Plasma membrane. - CORRECT ANSWER Plasma membrane.
A tincture is a solution in which
alcohol is the solvent.
water is the solvent.
alcohol is the solute.
water is the solute. - CORRECT ANSWER alcohol is the solvent.
According to the Ideal Gas Equation (PV = nRT), if the temperature and amount of gas are kept constant, what will be the effect of an increase in pressure on the volume of a gas?
As the pressure increases, the volume decreases.
As the pressure increases, the volume increases.
The volume equalizes despite pressure changes.
The volume and pressure are unrelated - CORRECT ANSWER As the pressure increases, the volume decreases.
Volume and pressure have an inverse relationship
As an object falls freely near the surface of the earth, its speed increases, representing a transformation of
friction to kenetic energy.
kinetic energy to friction.
kinetic energy to potential energy.
potential energy to kinetic energy. - CORRECT ANSWER potential energy to kinetic energy.
At room temperature, which of these substances exists as diatomic molecules?
Carbon.
Iron.
Neon.
Oxygen. - CORRECT ANSWER Oxygen
Coulomb's law is most closely associated with
gravitational fields.
fluid flow.
electric charges.
nuclear forces. - CORRECT ANSWER electric charges.
During exercise, a person's respiratory rate increases due to
an increase in CO2 concentration in the blood.
a decrease in O2 concentration in the lungs.
an increase in hemoglobin in the blood.
a decrease in CO2 concentration in the blood. - CORRECT ANSWER an increase in CO2 concentration in the blood.
If a person is fasting for 24 hours and ingests no carbohydrates, the liver will provide for the body's need by
converting glycogen into glucose.
breaking down red blood cells.
emulsifying fat.
producing more bile. - CORRECT ANSWER converting glycogen into glucose.
If all of the second-order consumers within an ecosystem of a region were removed, the most likely short-term effect would be
a decrease in decomposers.
an increase in producers.
an increase in the number of first-order consumers.
a decrease in the number of first-order consumers. - CORRECT ANSWER an increase in the number of first-order consumers.
In order to observe the endoplasmic reticulum in a cell, a scientist would use
a light-microscope.
an electron microscope.
an ultracentrifuge.
dissecting instruments. - CORRECT ANSWER an electron microscope.
Muscles are attached to bone by which of these structures?
Cartilage.
Ligament.
Capsula.
Tendon. - CORRECT ANSWER Tendon.
Sodium will react most readily with
potassium.
helium.
chlorine.
boron. - CORRECT ANSWER chlorine.
Sugar molecules enter a cell against a concentration gradient by the process of
passive diffusion.
facilitated diffusion.
osmosis.
active transport. - CORRECT ANSWER active transport.
The amplitude of a sound wave is most closely related to its
pitch.
speed.
wavelength.
loudness. - CORRECT ANSWER loudness.
The full set of genes in an individual is known as
specific DNA.
the human genome.
a chromosomal pattern.
cellular identity. - CORRECT ANSWER the human genome.
The physics principle that is primarily used in developing a rollercoaster ride is
centripetal force.
specific gravity.
quantum energy.
certainty principle. - CORRECT ANSWER centripetal force.
The surface of the moon has almost no atmosphere and is one-sixth the gravitational acceleration of the earth. If a feather and a hammer were dropped near the surface of the moon,
the feather would hit the surface first because it has less mass.
the hammer would hit the surface first because it has more mass.
the feather and the hammer would hit the surface at the same time.
it is impossible to predict which would hit the surface first without more information. - CORRECT ANSWER the feather and the hammer would hit the surface at the same time.
mass does not affect gravitational pull; theoretically, all things should fall at the same rate, regardless of how heavy they are
The vertical columns on the periodic chart are known as
periods.
ions.
metalloids.
groups. - CORRECT ANSWER groups.
What is the pH of a solution whose H+ ion concentration is 1 x 10-2 mole per liter?
1
2
12
14 - CORRECT ANSWER 2
When a drop of dilute nitric acid is added to water surrounding a hydra, the animal draws in its tentacles. The acid is acting as
a hormone.
an impulse.
a stimulus.
a response. - CORRECT ANSWER a stimulus.
When two atoms share a pair of electrons, the bond between them is called
electrovalent.
covalent.
ionic.
metallic. - CORRECT ANSWER covalent.
Which aspect of a simple machine is represented by the ratio work output to work input?
Power expended.
Efficiency.
Ideal mechanical advantage.
Actual mechanical advantage. - CORRECT ANSWER Efficiency
Which of these arrangements of atoms is found in all alcohols?
C=C
C-O-C
C=O
C-OH - CORRECT ANSWER C-OH
Which of these changes occurs in the kidneys when a person becomes dehydrated?
The kidneys filter more water and there is less reabsorption of water from the blood.
The filtration rate of water remains constant and the reabsorption of water increases.
The filtration rate of water increases and the reabsorption of water remains constant.
No changes occur in kidney function. - CORRECT ANSWER The filtration rate of water remains constant and the reabsorption of water increases.
Which of these is the correct sequence of chambers through which blood flows in the human heart and lungs?
Right ventricle; right atrium; lungs; left atrium; left ventricle.
Right atrium; right ventricle; lungs; left atrium; left ventricle.
Left ventricle; left atrium; lungs; right atrium; right ventricle.
Left atrium; left ventricle; lungs; right atrium; right ventricle. - CORRECT ANSWER Right atrium; right ventricle; lungs; left atrium; left ventricle
Which of these pH values represents the most basic solution?
2
4
12
14 - CORRECT ANSWER 14
The philodendron plant was remarkably resilient. Resilient means
shiny.
tall.
productive.
hardy. - CORRECT ANSWER hardy.
The police confiscated the stolen items. Confiscated means
salvaged.
secreted.
recovered.
seized. - CORRECT ANSWER seized.
The general's behavior was described as choleric. Choleric means
formal.
hot-tempered.
predictable.
commendable. - CORRECT ANSWER hot-tempered.
The mother would not listen to her little boy's begging and pleading for another cookie. She would not listen to his
imprudence.
banter.
compliance.
entreaty. - CORRECT ANSWER entreaty
The suspect was apprehended by the crowd. The suspect was
seized.
engulfed.
pursued.
attacked. - CORRECT ANSWER seized
The employer thought that Anita's attention to detail was laudable. Laudable means
essential.
commendable.
time-consuming.
odd. - CORRECT ANSWER commendable.
An opening that permits light to enter is called
a duct.
a pathway.
a cynosure.
an aperture - CORRECT ANSWER an aperture
The salesperson used deceit to sell the merchandise. Deceit means
discounting.
slogans.
fraud.
charm. - CORRECT ANSWER fraud
The hinges on the door were inseparable for repair. They were incapable of being
dismantled.
dispatched.
dispensed.
disjoined. - CORRECT ANSWER disjoined
Items placed side by side are said to be
angular.
composite.
oblique.
juxtaposed. - CORRECT ANSWER juxtaposed
The inscription was the work of a vandal. A vandal is someone who
foretells.
mobilizes.
misleads.
defaces. - CORRECT ANSWER defaces
The revolutionary government made overtures to the opposition. Overture means a
proposal.
promise.
truce.
threat. - CORRECT ANSWER proposal
There was an infinitesimal amount of carbon monoxide at the peak of the mountain. Infinitesimal means
minuscule.
moderate.
enormous.
infinite. - CORRECT ANSWER minuscule
Many were left destitute after the tornado. Destitute means
injured.
worried.
abominable.
needy. - CORRECT ANSWER needy.
The artist lived in an obscure country village. Obscure means
intimate.
remote.
rustic.
hidden. - CORRECT ANSWER probably remote - should be hidden but marked wrong
The professor retired from his full schedule, but continued to function as an adjunct faculty member. Adjunct means
continuing.
auxiliary.
respected.
active. - CORRECT ANSWER continuing
The coroner was the first one to be called after the person was pronounced dead. A coroner is one who
dresses the body for a wake.
arranges flowers at a funeral.
conducts funeral services.
conducts inquests. - CORRECT ANSWER conducts inquests.
The principal hoped the rally would help foster a sense of esteem within the student body. Esteem means
work ethic.
high regard.
great power.
cooperative spirit. - CORRECT ANSWER high regard.
The teenager chided his sister for repeatedly taking off her eyeglasses. Chide means to
command authoritatively.
shout loudly.
speak angrily.
accuse mercilessly. - CORRECT ANSWER speak angrily.
The funds were allocated to various organizations. Allocated means
donated.
promised.
conveyed.
assigned. - CORRECT ANSWER assigned
If Olga's grandmother had a benign expression, the look on her face was
kindly.
admonishing.
pained.
frightened. - CORRECT ANSWER kindly
The students worked diligently in completing the class project. Diligently means
cooperatively.
earnestly.
reluctantly.
sporadically. - CORRECT ANSWER earnestly
The footnotes in the medical journal were particularly abstruse. Abstruse means
helpful.
interesting.
obscure.
advanced. - CORRECT ANSWER obscure
The reporter ended the press conference with a crass remark. Crass means
philosophical.
witty.
sophisticated.
insensitive. - CORRECT ANSWER insensitive
A conversation between two people ended in a brawl. A brawl is a
wrenching handshake.
hostile embrace.
noisy quarrel.
menacing stance. - CORRECT ANSWER noisy quarrel.
the chef produced a sweet for dessert. he made
- a nutrient
- a condiment
- a confection
- a soda bread - CORRECT ANSWER a confection
the happy couple wandered aimlessly across the meadow. the couple was
- a foraging
- interloping
- meandering
- trespassing - CORRECT ANSWER meandering
they remodeled the office and ordered new furniture, draperies, and rugs as part of a plan to
- consecrate
- habitate
- revise
- renovate - CORRECT ANSWER renovate
the rules of behavior that people are expected to follow in any group are called
- etiquette
- initiation
- socialism
- elitism - CORRECT ANSWER etiquette
the host offered them a quaff. he offered them a
- canapé
- sandwich
- drink
- cake - CORRECT ANSWER drink
when the undercover agent traveled, he concealed his identity. he traveled
- inexorably
- insensate
- incognito
- indiscreetly - CORRECT ANSWER incognito
some medications alleviate pain. alleviate means
- increase
- prevent
- deaden
- lessen - CORRECT ANSWER lessen
her position seemed dangerously uncertain. it seemed
- precarious
- unassailable
- recalcitrant
- intractable - CORRECT ANSWER precarious
the class learned how to type a letter with a postscript. a postscript is
- a salutation
- an attention line
- an added note
- an inside address - CORRECT ANSWER an added note
a tapeworm lives in the digestive system of its host and feed there. the host organism is harmed. the tape worm is:
- a predator
- a culprit
- parasite
- scullion - CORRECT ANSWER parasite
gina tried to emulate her mother. emulate means
- disobey
- imitate
- ignore
- help - CORRECT ANSWER imitate
casual clothing is not appropriate in that milieu. milieu means
- school
- environment
- family
- company - CORRECT ANSWER environment
when it comes to cooking, sharon is a neophyte. neophyte means
- failure
- beginner
- expert
- gourmet - CORRECT ANSWER beginner
she took umbrage at the newspaper article about her. she felt
- delighted
- offended
- flattered
- surprised - CORRECT ANSWER offended
the demonstrators were loudly insistent on their point of view. they were
- slanderous
- blatant
- pugnacious
- vociferous - CORRECT ANSWER vociferous
when they approached the house, they experienced a sense of foreboding. foreboding means
- wonder
- dread
- joy
- relief - CORRECT ANSWER dread
the pilgrims were often swathed in synthetic garments. swathed means
- wrapped up
- dressed up
- uncomfortable
- inadequately covered - CORRECT ANSWER wrapped up
the property of a rolling ball that allows it to keep rolling for a time before it comes to a stop is known as
- force
- fulcrum
- velocity
- momentum - CORRECT ANSWER momentum
the manual typewriter has become obsolete, obsolete means
- outmoded
- unusual
- damaged
- nebulous - CORRECT ANSWER outmoded
the explorer's face was haggard after his trick through the desert, haggard means:
- dirty and bearded
- excited and triumphant
- cut and bruised
- thin and drawn - CORRECT ANSWER thin and drawn
teresa can be easily controlled by others, she is
- tractable
- volatile
- resilient
- introspective - CORRECT ANSWER tractable
the reporter thought that the senator's actions were incongruous, incongruous means
- bizarre
- in poor taste
- out of place
- illegal - CORRECT ANSWER out of place
the speaker kept asserting the truth of his beliefs even in the face of opposing arguments. the speaker was
- dogmatic
- wavering
- indefensible
- autocratic - CORRECT ANSWER dogmatic
a person who loves books is called a
- bibliophile
- textuary
- belletrist
- librettist - CORRECT ANSWER bibliophile
in nora's opinion, the values of honesty and hard work are passé, passé means
- vital
- outdated
- unimportant
- nouveau - CORRECT ANSWER outdated
the senate did not consider a tax cut to be feasible, feasible means
- worthwhile
- possible
- appropriate
- necessary - CORRECT ANSWER possible
a break in the usual routine is called a
- schist
- hiatus
- incursion
- remission - CORRECT ANSWER hiatus
the speaker's words were concise and carefully chosen, the words were
- terse
- judicious
- candid
- ambiguous - CORRECT ANSWER terse
the supervisor noticed a growing lassitude in her staff, lassitude means
- weariness
- arrogance
- tardiness
- discontent - CORRECT ANSWER weariness
christine wanted to expedite her wrongdoing, she wanted to
- conceal it
- confess it
- be cleared of it
- make up for it - CORRECT ANSWER make up for it
barbara's popularity proved to be ephemeral, ephemeral means
- inexplicable
- temporary
- exaggerated
- widespread - CORRECT ANSWER temporary
how many fractions are there between the integers -1 and 0
- an infinite number
- 64
- 32
- 16 - CORRECT ANSWER an infinite number
which of the following would be classified as a vertebrate
- earthworm
- starfish
- snake
- lobster - CORRECT ANSWER snake
the human diaphragm can be described as
- the muscle that protects the entrance tot he larynx
- the location in the lungs where the diffusion of respiratory gasses occurs
- the muscular sheet that assists in the mechanics of breathing
- the tube down which air passes on its way to the lungs - CORRECT ANSWER - a muscular sheet that assists in the mechanics of breathing
which of these conditions most likely explains the sudden death of many fish in a river on a hot day in summer?
- an increased number of predators
- an increased growth of algae
- a reduced food supply
- a reduced amount of dissolved oxygen - CORRECT ANSWER a reduced amount of dissolved oxygen
the energy associated with an object's motion is called
- potential energy
- nuclear energy
- kinetic energy
- thermal energy - CORRECT ANSWER kinetic energy
the frequency of a sound wave is directly related to its
- loudness
- pitch
- timbre
- resonance - CORRECT ANSWER pitch
which measurement shows the normal pulse and blood pressure values for a patient?
- 55/min, 125/95 mm/hg
- 72/min, 120/80 mm/hg
- 60/min, 100/75 mm/hg
- 80/min, 72/120 mm/hg - CORRECT ANSWER 72/min, 120/80 mm/hg
when the rib cage moves upward and outward and the diaphragm flattens out
- air is expelled from lungs
- air is drawn into lungs
- air pressure in the lungs rises
- there is no change in the air pressure in the lungs - CORRECT ANSWER air is drawn into lungs
the term that describes how the stem of a plant grows toward the light is
- -phototropism
- -geotropism
- +phototropism
- +geotropism - CORRECT ANSWER +phototropism
the electrical activity of the brain is recorded as an
- electrocardiogram
- angiogram
- electroencephalogram
- electromotor response - CORRECT ANSWER electroencephalogram
the first living thing found colonizing a hitherto barren area is called a
- producer
- primary consumer
- pioneer organism
- carnivore - CORRECT ANSWER pioneer organism
photographs in an old family album reveal that an area now covered with shrugs and small trees and occasionally gets swampy in the spring was once a pond, this is an example of
- food chain
- ecological succession
- an ecosystem
- the colonization of barren land - CORRECT ANSWER ecological succession
if attempts to decompose a substance prove unsuccessful, the substance is probably
- an element
- a compound
- a mixture
- a liquid - CORRECT ANSWER an element
a solution with hydrogen ion concentration of 1x10-7 is
- acidic
- basic
- neutral
- alkaline - CORRECT ANSWER neutral
an animal who's retina has no cone cells probably can not
- see at all
- distinguish color
- see 3D objects
- distinguish shades of black and white - CORRECT ANSWER distinguish color
the average kinetic energy of a substance increases when
- its temp increase
- its temp decreases
- it changes from liquid to solid
- it changes from liquid to gas - CORRECT ANSWER its temp increases
within which of these structures of the female reproductive tract is the human egg fertilized
- uterus
- fallopian tube
- vagina
- ovary - CORRECT ANSWER fallopian tube
the xylem vessels of a plant carry
- food down from the leaves
- carbon dioxide into the leaves
- chlorophyll to assist in photosynthesis
- water up from the roots - CORRECT ANSWER water up from the roots
a small foil disk was attached to a leaf of a plant that was placed in a well lit area, after 2 hours the leaf was removed from the plant and chlorophyll was extracted from it. how would the leaf appear after it was stained with lug's solution (iodine)
- uniformly black
- uniformy white
- mostly black except for a white area corresponding to the presence of the disk
- mostly white except for a black area corresponding to the presence of the disk - CORRECT ANSWER mostly black except for a white area corresponding to the presence of the disk
when a human RBC is placed in distilled water it will
- swell up and eventually burst
- shrink in size
- stay the same size
- actively pump water out of the cell - CORRECT ANSWER swell up and eventually burst
the enzymes found in the stomach and small intestine that hydrolyze fats are called
- amylases
- peptidases
- proteases
- lipases - CORRECT ANSWER lipases
blood returning to the heart from the body travels through the vena cave and enters the
- RA
- RV
- LA
- LV - CORRECT ANSWER RA
a particle of light energy is called a
- positron
- neutron
- betatron
- photon - CORRECT ANSWER photon
a simple series circuit carries a current of 3.0 amp when the potential difference across it is 24.0 volts, the resistance of this circut is
- 0.125 omega
- 8.0 omega
- 27.0 omega
- 72.0 omega - CORRECT ANSWER 8.0 omega
tissue that is striated with multinucleate cells is found at
- the heart
- the stomach
- the brain
- the arm muscle - CORRECT ANSWER the arm muscle
in which of these media will monochromatic light have the lowest speed, refractive indices given
- lucite 1.50
- diamond 2.42
- water 1.33
- air 1.00 - CORRECT ANSWER diamond
although it is not possible to experiment with human beings to obtain genetic info, data on human genetics have been obtained from
- observing human eggs under a microscope
- listing the genetic characteristics of individual humans
- fertilizing human eggs in a glass dish
- making family trees that include information about certain diseases that related individuals have had - CORRECT ANSWER making family trees that include information about certain diseases that related individuals have had
the region of the human brain where speech function and conscious thought processes are located is called the
- cerebrum
- cerebellum
- medulla oblongata
- hypothalamus - CORRECT ANSWER cerebrum
a structure associated with osmosis in the amoeba and paramecium is the
- nucleus
- mitochondria
- contractile vacuole
- ribosome - CORRECT ANSWER contractile vacuole
what is the correct voltage of a chemical cell that has reached equilibrium
- 1v
- greater than 1v
- between 0 and 1v
- 0v - CORRECT ANSWER 0v
a cross between a plant with red flowers and one bearing white flowers produces pink flowers, this is an example of
- incomplete dominance
- mendel's law of independent assortment
- mendel's law of segregation
- sex linkage - CORRECT ANSWER incomplete dominance
a chemical change always involves the formation of a
- compound
- gas
- new element
- new substance - CORRECT ANSWER new substance
if a solution turns litmus blue, it will also turn phenolphthalein
- pink
- green
- yellow
- colorless - CORRECT ANSWER pink
the interaction of bone and muscle that results in a specific musculoskeletal movement can best be characterized by the physical principle of a
- pulley
- spring
- wave
- lever - CORRECT ANSWER lever
one possible reason that animals such as mice, moles, and rabbits have such rapid rates of reproduction is that they
- are herbivorous
- live together in burrows
- are predators
- serve as prey for many other animals - CORRECT ANSWER serve as prey for many other animals
solid objects become positively charged by
- losing protons
- gaining protons
- losing electrons
- gaining electrons - CORRECT ANSWER losing electrons
which of these statements accurately describes what happens to an object as it falls freely near the surface of the earth
- its kinetic an potential energies decrease
- its kinetic energy decreases and its potential energy increases
- its kinetic energy increases and its potential energy decreases
- its kinetic and potential energies increase - CORRECT ANSWER its kinetic energy increases and its potential energy decreases
which process produces the energy in modern nuclear reactors
- fusion
- alpha decay
- fission
- electron capture - CORRECT ANSWER fission
which molecule contains nonpolar covalent bonds
- NaCl
- Cl2
- Her
- CO2 - CORRECT ANSWER Cl2
the scientific name of the cat is Felis domestics, the term Felis indicates which of these levels of classification
- genus
- species
- family
- kingdom - CORRECT ANSWER genus
different types of white blood cells are classified histologically, they are distinguished from one another base on their morphology and their
- cell size
- number in a sample of blood
- staining characteristics
- ability to engulf bacteria - CORRECT ANSWER ability to engulf bacteria
which of the following is an example of a physical property? a substance's ability to
- react with an acid
- oxidize a compound
- decomose
- dissolve in water - CORRECT ANSWER dissolve in water [Show Less]