Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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The diagrams below represent bones in the limbs of fossil
horses and modern horses.
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1.
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Refer
to the illustration above. The fossils indicate that horse evolution probably has taken
place a. | rapidly. | b. | in only one place on Earth. | c. | gradually. | d. | five times by the process of punctuated
equilibrium. | | |
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2.
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struggle for survival : competition :: a. | time :
environment | c. | trait :
time | b. | survival of the
fittest : best traits | d. | environment :
traits | | | | |
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3.
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The
lung disease tuberculosis a. | kills more adults than any other infectious
disease. | b. | is easily treated with rifampin and
isoniazid. | c. | is caused by an unknown organism. | d. | usually affects
only children. | | |
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4.
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Rifampin, the antibiotic commonly used to treat tuberculosis, acts by a. | mutating
bacterial RNA. | b. | preventing bacteria from dividing. | c. | mutating
bacterial polymerase genes. | d. | preventing bacterial mRNA
transcription. | | |
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5.
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In
order to fit into their habitat, the Galapágos finches had a. | not
changed. | c. | evolved. | b. | migrated. | d. | None of the above | | | | |
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