What is the purpose of a hypothesis?
a. it specifies the procedure for a scientific experiment.
b. it is a prediction of whether an experiment will give useful results.
c. it tells other scientists what kind of research they should be doing.
d. it is a possible answer with an explanation for a scientific question.

The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .