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? A) a temporal reproductive isolating mechanism. B) a behavioral reproductive isolating mechanism. C) a gametic reproductive isolating mechanism.

The correct answer will be option-B

Explanation:

A species is a group of similar organisms which interbreed with the individual of the same group of closely related individuals.

Species are reproductively isolated by various mechanisms, one of which is due to the behavior.

When the species are not able to reproduce to different species due to the differences in their behaviour in terms of mating rituals which could be due to different mating rituals or a different way of mating like observed in the grasshoppers is known as behavioral reproductive isolating mechanism.

In grasshoppers, the grasshopper's species cannot interbreed due to the differences in the mating songs as a part of the behavior.

Thus, Option-B is the correct answer.