Some animal species found in caves have tiny, nonfunctional eyes. These are best described as
A) mutations.
B) vestigial structures.
C) analogous structures.
D) homologous structures.
Correct Answer:
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Q20: Who proposed the geological theory of catastrophism?
A)
Q21: Natural selection can act on a certain
Q22: Which of the following are vestigial structures?
A)
Q23: The human upper arm bone (the humerus)
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Q26: Which of the four postulates of Darwin's
Q27: Where are the Galápagos Islands?
A) Off the
Q28: No one is certain what the function
Q29: Natural selection is best described as
A) causing
Q30: Which trait provides a survival advantage?
A) A
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