The model of speciation that requires some time with geographic barriers between two populations,allowing evolution of reproductive isolation,is
A)allopatric speciation.
B)phyletic gradualism.
C)sympatric speciation.
D)punctuated equilibrium.
E)prezygotic isolation.

Question

Quizplus · Accepted Answer

Allopatric speciation is the model of speciation that requires geographic barriers to exist between two populations for an extended period of time. The geographic barriers lead to reproductive isolation, and the populations diverge enough to become distinct species. This process takes place over a long period of time and is therefore considered a type of gradualism.

The Model of Speciation That Requires Some Time with Geographic