Allopatric speciation is most commonly caused by
A)geographical distance.
B)the unattractiveness of the females.
C)a heavy parasite load.
D)rapid genetic exchange over long distances.
E)increased genetic drift.

Question

Quizplus · Accepted Answer

Allopatric speciation occurs when populations of the same species become geographically isolated from each other, which prevents gene flow and leads to genetic divergence and eventual speciation. This is the most common form of speciation.

Allopatric Speciation Is Most Commonly Caused by