Question

A researcher discovers two populations of birds that are similar. The two populations live in habitats that are different. What evidence might suggest to the researcher that the birds belong to different species rather than the same species?

Answer 1

Display of different mating behavior and their reproductive isolation.

Step-by-step explanation:

Display of different mating behavior and their reproductive isolation would suggest that the birds belong to different species rather than the same species. Individuals from same species can interbreed to produce fertile progeny. Display of different mating behavior and absence of any interbreeding among the birds of two population suggest that they belong to two different species.

Answer 2

We may lead to a presupposition that the researcher based its analysis on the environmental habitats of the organisms, moreover it can also be the almost identical but different morphological or physiological structures. There are many ways to classify an animal or base an animal, morphology, embryology, DNA and others.