Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Mutations such as polyploidy and crossing over provide the genetic basis for
_____. a. | evolution | c. | biogenesis | b. | spontaneous generation | d. | sexual reproduction | | | | |
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2.
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Natural selection can best be defined as the _____. a. | survival of the
biggest and strongest organisms in a population | b. | elimination of
the smallest organisms by the biggest organisms | c. | survival and
reproduction of the organisms that occupy the largest area | d. | survival and
reproduction of the organisms that are genetically best adapted to the
environment | | |
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3.
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A
pattern of evolution that results when two unrelated species begin to appear similar because of
environmental conditions is _____. a. | disruptive selection | c. | directional selection | b. | convergent
evolution | d. | divergent
evolution | | | | |
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4.
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_____
selection favors one extreme form of a trait in a population. a. | Directional | c. | Disruptive | b. | Stabilizing | d. | Natural | | | | |
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5.
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Which
answer BEST shows an animal's adaptation to the tropical rain forest? a. | camouflage in a
tree frog | c. | an elephant's
long trunk | b. | the long neck of a giraffe | d. | migration of birds in winter | | | | |
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6.
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The
variations needed for the origin of structural and physiological adaptations to occur are provided by
_____. a. | mimicry | c. | punctuated
changes | b. | gradual changes | d. | mutations | | | | |
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7.
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A
mechanism of Darwin's proposed theory is _____. a. | artificial selection | c. | variation | b. | evolution | d. | all of
these | | | | |
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8.
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The
founder of modern evolution theory is considered to be _____. a. | Charles
Darwin | c. | Stephen Jay
Gould | b. | Alexander Oparin | d. | Lynn Margulis | | | | |
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9.
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Which
combination of characteristics in a population would provide the greatest potential for
evolutionary change? a. | small population, few mutations | c. | large population, few mutations | b. | small
population, many mutations | d. | large
population, many mutations | | | | |
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10.
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The
theory of continental drift hypothesizes that Africa and South America slowly drifted apart after
once being a single landmass. The monkeys on the two continents, although similar, show numerous
genetic differences. Which factor is probably the most important in maintaining these
differences? a. | comparative
anatomy | c. | geographic
isolation | b. | comparative embryology | d. | fossil records | | | | |
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