Due to character displacement,two closely related species may differ most morphologically when they
A)are allopatric.
B)are sympatric.
C)occupy the same niche.
D)occupy different niches.
E)share a common ancestor.

Question

Quizplus · Accepted Answer

Character displacement is the phenomenon where species evolve to have differences in physical characteristics when they live in the same geographic area. Therefore, closely related species will differ the most in morphology when they are sympatric. Allopatric species are separated geographically and are less likely to experience character displacement. Similarly, species occupying different niches are less likely to experience competition and character displacement. Sharing a common ancestor does not necessarily mean that the species will differ greatly in morphology.

Due to Character Displacement,two Closely Related Species May Differ Most