Multiple Choice
A single population becomes separated by a geographic barrier,and each population acquires genetic differences.Which of the following could happen if this barrier is removed and the two populations interact and attempt to mate?
A) Reproductive isolating mechanisms may not have evolved and thus the two species could successfully mate.
B) Prezygotic isolating mechanisms may have evolved,thus preventing the two populations from mating.
C) Postzygotic isolating mechanisms may have evolved,thus preventing the two populations from producing viable or fertile offspring.
D) All of the above could happen.
Correct Answer:

Verified
Correct Answer:
Verified
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