Allopatric speciation is not likely to occur when
A) there is no disruption in gene flow between two populations.
B) a geographic barrier forms between two populations.
C) several populations become isolated from one another as drying conditions cause a large body of water to become separate, smaller bodies of water.
D) separated populations adapt to different environmental conditions.

Question

Quizplus · Accepted Answer

Allopatric speciation requires a disruption in gene flow between two populations, which means they cannot interbreed and exchange genes. If there is no disruption in gene flow, then the populations will continue to exchange genes and remain a single species.

Allopatric Speciation Is Not Likely to Occur When