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WorksheetsBiology Keystone Review
Total questions: 137
Worksheet time: 3hrs 38mins
Name
Class
Date
1.
Releases oxygen
a)
photosynthesis
b)
cellular respiration
c)
both
2.
releases carbon dioxide
a)
phtosynthesis
b)
cellular respiration
c)
both
3.
uses carbon dioxide
a)
cellular respiration
b)
photosynthesis
c)
both
4.
creates ATP
a)
cellular respiration
b)
photosynthesis
c)
both
5.
produces sugar
a)
cellular respiration
b)
photosynthesis
c)
both
6.
uses sugar
a)
cellular respiration
b)
photosynthesis
c)
both
7.
Releases oxygen
a)
plants
b)
animals
c)
both
8.
releases carbon dioxide
a)
plants
b)
animals
c)
both
9.
creates energy in the form of ATP
a)
Plants
b)
Animals
c)
Both
10.
Produces sugar
a)
plants
b)
animals
c)
both
11.
uses sugar
a)
plants
b)
animals
c)
both
12.
photosynthesis and cellular respiration are two major processes of carbon cycling in living organisms. Which statement correctly describes one similarity between photosynthesis and cellular respiration?
a)
both occur in animal and plant cells
b)
both include reactions that transform energy
c)
both convert light energy into chemical energy
d)
both synthesisze organic molecules as end products
13.
What process provides a vital connection between the Sun and the energy needs of living systems?
a)
decomosition
b)
cellular respiration
c)
transpitation
d)
photosynthesis
14.
During this cycle, the products fro on process serve as the starting materials for the other. Which of the following materials correspond(s) to box number 3?
a)
sunlight
b)
carbon dioxide and water
c)
ATP (energy) and heat
d)
oxygen and glucose
15.
A protein in a cell membrane changed its shape to move sodium and potassium ions against their concentration gradients. Which molecule was most likely used by the protein as an energy source?
a)
ATP
b)
ADP
c)
catalase
d)
amylase
16.
The Earth's carbon cycle consists of the flow, cycling, and recycling of all of the carbon on the Earth. Every living organism's composition includes the element carbon. How does carbon become part of living organisms?
a)
Producers take in carbon directly from the soil through their roots, and consumers eat the producers
b)
Producers take in carbon dioxide from the air, and consumers eat the producers
c)
Carbon is a part of sunlight and enters through the skins of all organisms
d)
Consumers take in carbon dioxide from the air, and producers eat the consumers
17.
A herd of zebra eating grass includes groups of organisms from different species. These groups best exemplify
a)
a biome interaction
b)
a community interaction
c)
an ecosystem interaction
d)
a population interaction
18.
Often, organisms compete with each other for a food source. Which of the following pairs of organisms compete with each other for food?
a)
mice and rabbits
b)
squirrels and owls
c)
rabbits and green plants
d)
mice and owls
19.
Which Lake Erie tributary is probably most contaminated with PCBs?
a)
Portage River
b)
Ottawa River
c)
Maumee River
d)
Ashtabula River
20.
the diagram suggessts...
a)
energy flows from secondary consumers to primary consumers in an ecosystem
b)
tertiary consumers are the ultimate source of energy in an ecosystem
c)
there are more tertiary consumers than producers in an energy pyramid
d)
producers are the foundation of all energy pyramids
21.
Which of the following is an abiotic factor?
a)
human
b)
bird
c)
grass
d)
rock
22.
which of the following organisms is best suited to live in the taiga?
a)
moose
b)
parrot
c)
frogs
d)
camels
23.
Mute Swans are one of the heaviest flying birds and consume up to 8 pounds of vegetation each day. How will the migration of Mute Swans into an area most likely affect the birds native to that area?
a)
The native birds and the Mute Swans will coexist peacefully together
b)
The native birds will immediately migrate to another area
c)
The native birds will decrease in number because there is not enough food for all the birds
d)
The native birds will adapt to consume less food or different types of food
24.
What interaction is shown between the lion and the zebra in the picture?
a)
predation
b)
parasitism
c)
commensalism
d)
mutualism
25.
A farmer observed that an increase in a field’s soil nitrogen content was followed by an increase in producer productivity. What does this observation most likely indicate about the relationship between nitrogen and the producers in the field?
a)
Nitrogen was a biotic factor
b)
Nitrogen was a limiting factor
c)
Nitrogen became a surplus resource
d)
Nitrogen became a selection pressure
26.
Agricultural runoff can carry fertilizers into lakes and streams. This runoff can cause algae populations to greatly increase. Which effect does this change in the algae population sizes most likely have on affected lakes and streams?
a)
an increase in water level
b)
an increase in water clarity
c)
a reduction in dissolved oxygen needed by fish and shellfish
d)
a reduction in temperature variations near the water’s surface
27.
Which sequence correctly describes the flow of energy between organisms in the marine food web?
a)
from seals to penguins to krill
b)
from whales to krill to small fish
c)
from sea birds to seals to penguins
d)
from small fish to penguins to seals
28.
Which statement correctly describes how nitrogen in the soil returns to the atmosphere?
a)
Soil bacteria convert nitrates into nitrogen gas
b)
Decomposers directly convert ammonium into nitrogen gas
c)
Plants assimilate nitrites and convert them into nitrogen gas
d)
Nitrogen-fixing bacteria in plant roots convert nitrates into nitrogen gas
29.
A species of snapping turtles has a tongue that resembles a worm. The tongue is used to attract small fish. Which best describes the interaction between the fish and the snapping turtle?
a)
predation
b)
symbiosis
c)
parasitism
d)
competition
30.
A researcher observing an ecosystem describes the amount of sunlight, precipitation, and type of soil present. Which factors is the researcher most likely describing?
a)
biotic factors in a forest
b)
biotic factors in a tundra
c)
abiotic factors in a prairie
d)
abiotic factors in an ocean
31.
Which term best classifies all of the observations? Observations: two grey wolves, five moose, several species of conifer trees, large granite rock and shallow pond.
a)
population
b)
food chain
c)
ecosystem
d)
community
32.
A group of students measured a ten-square-meter section of a pond ecosystem and recorded observations. Which statement is a testable hypothesis?
a)
The frogs living in the pond represent a population
b)
Water is an abiotic component in the pond ecosystem
c)
If the fish are given more food, then they will be happier
d)
If the frogs are startled, then they will jump into the water
33.
The rate that grass grows is related to the amount of light it receives
a)
Hypothesis
b)
Theory
34.
All life is related and descended from a common ancestor.
a)
Theory
b)
Hypothesis
35.
The universe began about 15 billion years ago
a)
hypothesis
b)
theory
36.
New tennis balls bounce higher than old tennis balls.
a)
theory
b)
hypothesis
37.
Caffeine raises blood pressure.
a)
hypothesis
b)
theory
38.
What characteristics is shared by all prokaryotes and eukaryotes?
a)
ability to store hereditary information
b)
use of organelles to control cell processes
c)
use of cellular respiration for energy release
d)
ability to move in response to environmental stimuli
39.
Living organisms can be classified as prokaryotes or eukaryotes. Which two structures are common to both prokaryotic and eukaryotic cells?
a)
cell wall and nucleus
b)
cell wall and chloroplast
c)
plasma membrane and nucleus
d)
plasma membrane and cytoplasm
40.
Alveoli are microscopic air sacs in the lungs of mammals. Which statement best describes how the structure of the alveoli allows the lungs to function properly?
a)
they increase the amount of energy transferred from the lungs to the blood
b)
they increase the flexibility of the lungs as they expand during inhalation
c)
they increase the volume of the lungs, allowing more oxygen to be inhaled
d)
they increase the surface area of the lungs, allowing efficient gas exchange
41.
Which example is an activity that a fish most likely uses to maintain homeostasis within its body?
a)
using camouflage to avoid predators
b)
feeding at night to regulate body temperature
c)
moving to deeper water to regulate metabolic wastes
d)
exchanging gases through its gills to regulate oxygen levels
42.
Which statement best describes an effect of low density of frozen water in a lake?
a)
when water freezes, it contracts, decreasing the water level in a lake
b)
water in a lake freezes from the bottom up, killing most aquatic organisms
c)
when water in a lake freezes, it floates, prividing insulation for the organisms below
d)
water removes thermal energy from the land around a lake, causing the lake to freeze
43.
Which sequence puts the terms in order from simplist to most complex?
a)
cell, organism, organ, organ system, tissue, organelle
b)
organelle, cell, tissue, organ, organ system, organism
c)
organism, organ system, organ, tissue, cell, organelle
d)
organelle, organism, organ system, organ, tissue, cell
44.
Which statement is true of the diagram?
a)
DNA transcription is producing ribosomal RNA
b)
DNA translation is producing messenger RNA
c)
DNA transcription is producing messenger RNA
d)
DNA translation is producing ribosomal RNA
45.
Which of the following is primarily responsible for coding of the amino acids used in the synthesis of cellular proteins?
a)
DNA
b)
transfer RNA
c)
ribosomes
d)
Golgi apparatus
46.
Genetic engineering has led to genetically modified plants that resist insect pests and bacterial/fungal infections. Which outcome would most likely be a reason why some scientists recommend caution in planting genetically modified plants?
a)
unplanned ecosysteminteractions
b)
reduced pesticide and herbicide use
c)
improved agricultural yield and profit
d)
increased genetic variation and diversity
47.
A genetic mutation resulted in a change in the sequence of amino acids of a protein, but the function of the protein was not changed. Which statement best describes the genetic mutation?
a)
it was a silent mutation that caused a change in the DNA of the organism
b)
it was a silent mutation that caused a change in the phenotype of the organism
c)
it was a nonsense mutation thhat caused a change in the DNA of the organism
d)
it was a nonsense mution that caused a change in the phenotype of the organism
48.
Which statement describes a cell process that is common to both eukaryotic and prokaryotic cells?
a)
both cell types carry out transcription in the nucleus
b)
both cell types use ribolsome to carry out translation
c)
both cell types assemble amino acids to carry out transcription
d)
both cell types carry out translation in the
49.
Which type of change in chromosome composition is illustrated in the diagram?
a)
deletion
b)
insertion
c)
inversion
d)
translocation
50.
Blood type is inherited through multiple alleles, including IA, IB and i. A child has type A blood. If the father has type AB blood, what are all the possible phenotypes of the mother?
a)
O or A
b)
A or AB
c)
A, B or AB
d)
O, A, B or AB
51.
The endoplasmic reticulum is a network on membranes within the cell, and it is often classified as rough or smooth, depending on whether there are ribosomes on its surface. Which statement best describes the role rough endoplasmic reticulum in the cell?
a)
it stores all proteins for later use
b)
it provides an attachment site for larger organelles
c)
it aids in the production of membrane and secretory proteins
d)
it stores amino acids required for the production of all proteins
52.
In a flowering plant species, red flower color is dominant over white flower color. What is the genotype of any red-flowering plant resulting from this species?
a)
red and white alleles present on one chromosome
b)
red and white alleles present on two chromosomes
c)
a red allele present on both homologous cromosomes
d)
a red allele present on at least one of two homologous chromosomes
53.
Which process helps to preserve the genetic information stored in DNA during DNA replication?
a)
the replacement of nitrogen base thymine with uracil
b)
enzymes quickly linking notrogen bases with hydrogen bonds
c)
the synthesis of unique sugar and phosphate molecules for each nucelotide
d)
nucleotides lining up along the template strand according to base pairing rules
54.
The type of compound that contains carbon atoms bonded to other carbon atoms
a)
carbon
b)
organic
c)
molecule
d)
macromolecule
55.
Which one is NOT a type of organic compound?
a)
carbohydrate
b)
lipid
c)
nucleic acid
d)
water
56.
What is the name of the sugar that is composed of many molecules of sugar?
a)
monosaccharide
b)
disaccharide
c)
polysaccharide
d)
monomers
57.
The type of polysaccharide which serves as a strengthening tissue in the cell wall of plants.
a)
cellulose
b)
glucose
c)
sucrose
d)
fructose
58.
What are the building blocks (monomers) of proteins?
a)
lipids
b)
carbohydrates
c)
amino acids
d)
polymers
59.
Which is not a use or function of protein?
a)
forms enzymes and hormones
b)
forms transport channel in cell membrane
c)
forms structural proteins in the body
d)
quick energy
60.
Which are the two building blocks of lipids.
a)
polysaccharides and amino acids
b)
glycerol and fatty acids
c)
glucose and fructose
d)
peptide chains
61.
Which is the monomer (building block) for nucleic acids?
a)
amino acid
b)
fatty acid & glycerol
c)
nucleotide
d)
monosaccharide
62.
Which is the monomer (building block) for carbohydrates?
a)
nucleotide
b)
monosaccharide
c)
amino acid
d)
fatty acids & glycerol
63.
Which is the monomer (building block) for lipids?
a)
fatty acids & glycerol
b)
nucleotide
c)
amino acids
d)
monosaccharide
64.
Which is an example of a lipid?
a)
oil
b)
sugar
c)
DNA
d)
red meat
65.
Which is an example of a nucleic acid?
a)
oil
b)
sugar
c)
DNA
d)
red meat
66.
What is the ratio of the elements found in carbohydrates?
a)
1:2:1
b)
2:1
c)
1:2
d)
1:4
67.
Carbohydrates are made of...
a)
C H O
b)
C H O N
c)
C H O N P
d)
C H O N S
68.
What is the difference between saturated & unsaturated fats?
a)
Saturated fats have at least 1 C=C bond.
b)
Unsaturated fats have at least 1 C=C bond.
69.
How many different amino acids are there?
a)
4
b)
20
c)
6
d)
46
70.
What is the function of nucleic acids?
a)
store genetic information
b)
store energy (long-term)
c)
store energy (short-term)
d)
build skin, hair, nails, muscles
71.
What is the function of lipids?
a)
store genetic information
b)
store energy (long-term)
c)
store energy (short-term)
d)
build skin, hair, nails, muscles
72.
What compound makes up most of the cell membrane?
a)
phospholipids
b)
carbohydrates
c)
cholesterol
73.
What kind of reaction links monomers together to form polymers?
a)
dehydration synthesis
b)
hydrolysis
74.
What kind of reactions break down polymers into individual monomers?
a)
hydrolysis
b)
dehydration synthesis
75.
Glucose is a _____.
a)
carbohydrate
b)
lipid
c)
protein
d)
nucleic acid
76.
DNA is a ______.
a)
protein
b)
carbohydrate
c)
nucleic acid
d)
lipid
77.
Which macromolecule is shown?
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
78.
Which macromolecule is shown?
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
79.
Which macromolecule is shown?
a)
lipid
b)
protein
c)
nucleic acid
d)
carbohydrate
80.
Sugars usually end in....
a)
-ose
b)
-ace
c)
-ats
d)
-ids
81.
Examples of lipids are?
a)
DNA and RNA
b)
amino acids
c)
Fats, oils, waxes, and hormones
d)
vitamins A, B, C, and D
82.
A long molecule consisting of many similar or identical monomers linked together.
a)
polypeptide
b)
polymer
c)
fatty acids
d)
carbon, hydrogen, oxygen
83.
This type of cell does not have bound compartments.
a)
eukaryote
b)
prokaryote
84.
contains DNA
a)
prokaryote
b)
eukaryote
c)
both
85.
contains organelles
a)
prokaryote
b)
eukaryote
c)
both
86.
a bacteria cell is an example of this type of cell
a)
prokaryote
b)
eukaryote
c)
both
87.
contains a nucleus
a)
eukaryote
b)
prokaryote
c)
both
88.
contains a nucleus
a)
eukaryote
b)
prokaryote
c)
both
89.
does cellular respiration
a)
mitochondria
b)
chloroplast
c)
endoplasmic reticulum
d)
Golgi apparatus
90.
performs protein synthesis
a)
ribosome
b)
nucleus
c)
Golgi apparatus
d)
vacuole
91.
contains hereditary information
a)
nucleus
b)
vacuole
c)
cell membrane
d)
endoplasmic reticulum
92.
stores water, undigested food, and/or waste
a)
nucleus
b)
vacuole
c)
mitochondria
d)
endoplasmic reticulum
93.
active in movement of the chromosomes during cell division
a)
centrioles
b)
mitochondria
c)
nucleus
d)
cell wall
94.
storage of digestive enzymes
a)
vacuoles
b)
lysosomes
c)
endoplasmic reticulum
d)
Golgi apparatus
95.
Transports materials within the cytoplasm
a)
endoplasmic reticulum
b)
Golgi apparatus
c)
nucleus
d)
vacuole
96.
Packages secretions
a)
Golgi apparatus
b)
endoplasmic reticulum
c)
vacuole
d)
nucleus
97.
Using a microscope, a student observes a small, green organelle in a plant cell. Which energy transformation most likely occurs first within the observed organelle?
a)
ATP to light
b)
light to chemical
c)
heat to electrical
d)
chemical to chemical
98.
Carbon dioxide and oxygen are molecules that can move freely across a plasma membrane. What determines the direction that carbon dioxide and oxygen molecules move?
a)
orientation of cholestrol in the plasma membrane
b)
concentration gradient across the plasma membrane
c)
configuration of phospholipids in the plasma membrane
d)
location of receptors on the surface of the plasma membrane
99.
A sodium-potassium pump within a cell membrane requires energy to move sodium and potassium ions into or out of a cell. The movement of glucose into or out of a cell does not require energy. Which statement best describes the movement of these materials across of cell membrane?
a)
Sodium and potassium ions move by active transport, and glucose moves by osmosis
b)
sodium and otassium ions move by active transport, and glucose moves by facilitated diffusion
c)
sodium and potassium ions move by facilitated diffusion, and glucose moves by osmosis
d)
sodium and potassium ions move by facilitated diffusion and glucose moves by active transport
100.
The rough endoplasmic reticulum and Golgi apparatus work together in eukaryotic cells. What is one way the the rough E.R. assists the Golgi apparatus?
a)
it assembles nucleic acids from monomers
b)
it breaks down old, damaged macromolecules
c)
it packages new protein molecules into vesicles
d)
it determine which protein molecules to synthesize
101.
Which statement supports this description?
In many eukaryotic cells, DNA stored in the nucleus is transcribed into messenger RNA. The mRNA is then transported into the cytoplasm where ribosomes assist in their translation into proteins. Finally, these proteins are packaged and sorted in the Golgi apparatus for use in other parts of the cell or in preparation for secretion into other cells.
In many eukaryotic cells, DNA stored in the nucleus is transcribed into messenger RNA. The mRNA is then transported into the cytoplasm where ribosomes assist in their translation into proteins. Finally, these proteins are packaged and sorted in the Golgi apparatus for use in other parts of the cell or in preparation for secretion into other cells.
a)
various organelles within a cell interact with each other to carry out life processes
b)
organelles within a cell act independently of ceach other at all times
c)
some organelles are more important than other organelles within a cell
d)
only up to three organelles may interact iwht each other at any given moment in time
102.
The cell membrane serves many functions. One of the cell membrane's functions is to help the cell maintain homeostasis. Which of the following statement best supports this claim?
a)
the cell membrane contains a polar region and a nonpolar region
b)
the cell membrane contains proteins
c)
the cell membrane contains phospholipids
d)
the cell membrane regulates what goes in and out of the cell
103.
Since sodium-potassium pumps require an input of energy to operate, they are an example of...
a)
passive transport
b)
facilitated diffusion
c)
filtration
d)
active transport
104.
Most organisms can be divided into two categories - prokaryotes and eukaryotes. What is the main difference between these two categories?
a)
Eukaryotes are living organisms whereas porkaryotes include some nonliving matter
b)
prokaryotes do not possess any means of locomotion and are thus unable to move
c)
prokaryotes do not possess a nucleus or any other membrane-bound organelles
d)
eukaryotes are found in al of the six major taxonomic kingdoms
105.
The movement of oxygen molecules from an area of higher concentration to an area of lower concentration is known as __________.
a)
diffusion
b)
osmosis
c)
respiration
d)
photosynthesis
106.
Energy conversion within an animal cell would be severely limited by removal of the cell's...
a)
lysosomes
b)
plastids
c)
chloroplasts
d)
mitochondria
107.
If a cat has 38 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?
a)
19
b)
76
c)
11
d)
38
108.
Which of the following best describes the way that genes, chromosomes and DNA are related?
a)
Chromosomes contain several genes, which are made up of sequences of DNA
b)
Genes contain several chromosomes, which are made up of sequences of DNA
c)
Genes contain several sequences of DNA, which are made up of chromosomes
d)
Sequences of DNA contain several genes, which are made up of chromosomes
109.
Which of the following statements is true?
a)
mitosis results in the formation of two haploid gametes which can then combine to form a diploid daughter cell
b)
during the process meiosis, haploid cells are formed. After fertilization, the diploid number of chromosomes is restored
c)
the process of meiosis forms daughter cells which are genetically identical to thier parent cells
d)
the daughter cells formed during mitosis are genetically similar to, though not identical to, their parent cell
110.
Hemophilia is an inheritable genetic disorder that prohibits the proper formation of blood clots. The recessive gene that causes hemophilia is located on the X-chromosome. So, which of the following statements is true?
a)
if a male offspring is a hemophiliac, his mother must be a hemophiliac
b)
if a female offspring is a hemophiliac, her father must be a hemophiliac
c)
if a male offspring is a hemophiliac, his father must be a hemophiliac
d)
if a female offspring and a hemophiliac, her mother must be a hemophiliac
111.
Suppose that the central C-G base pair in the DNA moleucle below is substituted by an A-T base pair. What is the most likely result of this mutation?
a)
genetic variation
b)
genetic clones
c)
incomplete translation
d)
identical offspring
112.
Mitosis and meiosis are processes by which animal and plant cells divide. Which statement best describes a difference between mitosis and meiosis?
a)
meiosis is a multi-step process
b)
mitosis occurs only in eukaryotic cells
c)
meiosis is used in the repair of an organism
d)
mitosis produces genetically identical daughter cells
113.
Which statement best describe the phase of the cell cycle shown?
a)
the cell in in prophase of mitosis because the number of chromosomes has doubled
b)
the cell in in prophase I of meiosis because the number of chromosomes has doubled
c)
the cell in in telophose of mitosis becasuse the cell is separating and contains two copies of each chromosome
d)
the cell is in telophase of meiosis because the cell is separating and contains one copy of each chromosome
114.
crossing over happens
a)
mitosis
b)
meiosis I
c)
meiosis II
d)
mitosis and meiosis II
115.
Sister chromatids separate
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
116.
Haploid cells result
a)
mitosis
b)
meiosis
c)
both
117.
spindle fibers form
a)
prophase
b)
anaphase
c)
metaphase
d)
telophase
118.
cytokinesis begins
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
119.
Transcription/translation occurs
a)
interphase
b)
prophase
c)
metaphase
d)
anaphase
120.
DNA is replicated
a)
interphase
b)
prophase
c)
metaphase
d)
anaphase
121.
tetrads form
a)
mitosis
b)
meiosis I
c)
meiosis II
d)
both mitosis and meiosis I
122.
final chromosome number is identical to parent cell at the end
a)
mitosis
b)
meiosis I
c)
meiosis II
d)
both mitosis and meiosis I
123.
nuclear membrane breaks down
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
124.
sex cell result
a)
meiosis
b)
mitosis
c)
both
125.
daughter cells are genetically identical to parent cells
a)
mitosis
b)
meiosis
c)
both
126.
body cells result
a)
mitosis
b)
meiosis
c)
both
127.
chromatids line up single file
a)
prophase
b)
metaphase
c)
anaphase
d)
telophase
128.
a record of ancient life forms in rock
a)
fossil evidence for evolution
b)
embryological evidence for evolution
c)
physiological evidence for evolution
d)
biochemical evidence for evolution
129.
The hemoglobin in blood of humans and chimps is very similar
a)
fossil evidence for evolution
b)
biochemical evidence for evolution
c)
anatomical evidence for evolution
d)
embryological evidence for evolution
130.
A record of ancient life forms in rock.
a)
fossil evidence for evolution
b)
homologous structure as evidence for evolution
c)
analogous structure asevidence for evolution
d)
embryological evidence for evolution
131.
The hemoglobin in blood of humans and chimpanzees is remarkably similar
a)
biochemical similarity
b)
fossil
c)
homologous structures
d)
analogous structures
132.
The graphs illustrate change in a lizard population over time. Which process most likely led to the change in the lizard population?
a)
natural selection acting on a harmful trait
b)
natural selection acting on a beneficial trait
c)
natural selection acting on a dominant trait
d)
natural selection acting on a recessive trait
133.
In North America, the eastern spotted skunk mates in late winter, and the western spotted skunk mates in late summer. Even though their geographic ranges overlap, the species do not mate with each other. What most likely prevents these two species from interbreeding?
a)
habitat isolation
b)
gametic isolation
c)
geographic isolation
d)
reproductive isolation
134.
A mutation occurs in the genes that code for coat color in deer. Which change will most likely result from this mutation?
a)
change in the selection pressures acting on coat color
b)
change in the coat-color genes of deer predator species
c)
increase in coat-color diversity in the population
d)
increase in the number of genes for coat color in the population
135.
Two continental plates collide and begin to build up a mountain range. Gradually, a species of lizards becomes separated by the mountain range. The members on one side can no longer interact with members on the other side. Due to their separation, the two populations of lizards will...
a)
evolve in exactly the same manner and remain as one species
b)
likely become extinct within one year
c)
likely evolve into separate species over millions of years
d)
begin hunting one another for food
136.
According to the theory of natural selection, which of the following organisms is most likely to survive in the given environments?
a)
rabbit with short, brown fur in a cold, snowy, arctic environment
b)
large, leafy plant with shallow roots in a hot and dry desert biome
c)
bird with a short beak in an area where insects live deep within the ground
d)
lizard that exhibits the same coloration as its surrounding plant life
137.
What information do fossils provide about the history of organisms on Earth?
a)
Organisms have stayed exactly the same since the Earth was formed
b)
Organisms on Earth have not evolved or changed during the last 200 years
c)
Fossils do not provide any information about the history of organisms on Earth
d)
Organisms on Earth have evolved and changed significantly over time
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