Suppose one incipient species of beetle prefers to live and mate in grassy areas and its sibling incipient species prefers sandy soils.This would be an example of _______ isolation.
A) temporal
B) habitat
C) postzygotic
D) mechanical
E) gametic

Question

Quizplus · Accepted Answer

This is an example of habitat isolation as the two incipient species prefer different habitats (grassy areas vs sandy soils) and do not come into contact with each other frequently enough to interbreed. Temporal isolation refers to differences in mating seasons/times, postzygotic isolation refers to differences in the fertilization and development of gametes, mechanical isolation refers to differences in reproductive structures preventing mating, and gametic isolation refers to incompatibility between gametes. None of these apply to the scenario given.

Suppose One Incipient Species of Beetle Prefers to Live and Mate