Two Populations That Have Been Separated by a River Are

question 38

Multiple Choice

Two populations that have been separated by a river are most likely to become separate species if

• A) fur color is different in the two populations.
• B) genes controlling ear development become different so that members of one population have much longer ears than the other.
• C) genes controlling molecules on the surface of the sperm that bind with egg receptors are different in the two populations.
• D) feeding habits are different in the two populations.

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