A major difference between allopatric and sympatric speciation is whether
A) the resulting species are reproductively isolated or not.
B) gene flow continues to occur or not.
C) two or three species result.
D) geographic isolation is required or not.
E) the new species are separated by a prezygotic or postzygotic isolating mechanism.

Question

Quizplus · Accepted Answer

Geographic isolation is a key factor distinguishing allopatric from sympatric speciation. In allopatric speciation, a population is divided by a geographic barrier leading to speciation, whereas sympatric speciation occurs without geographic separation.

A Major Difference Between Allopatric and Sympatric Speciation Is Whether