Multiple Choice
Almost all mammals have seven cervical vertebrae. There is a fitness disadvantage to mammals that have a different number of cervical vertebrae; for example, in humans, fetuses with an abnormal number of cervical vertebrae are often stillborn, and such children are more prone to pediatric cancers. This is an example of
A) convergent evolution.
B) phenotypic plasticity.
C) constraining evolution.
D) pleiotropy
Correct Answer:
Verified
Correct Answer:
Verified
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