Fifty people were surveyed about their favorite flavor of frozen yogurt. The results of the survey are displayed in the circle graph.

How many people prefer vanilla?

Enter your answer in the box.

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 .