Three populations of crickets look very similar,but the males have courtship songs that sound different.What function would this difference in song likely serve if the populations came in contact?

Question

Quizplus · Accepted Answer

The difference in courtship songs of the male crickets serves as a prezygotic isolating mechanism as it prevents interbreeding between the populations. This can lead to the formation of different species. A postzygotic isolating mechanism, on the other hand, would occur after mating and would result in infertility or reduced viability of hybrid offspring.

Three Populations of Crickets Look Very Similar,but the Males Have