If you remove starfish from an ocean shoreline ecosystem, what happens to the mussel (clam) populations?
they become extinct.
the area becomes more diverse with more kinds of clams.
one species of clam crowds out all the others.
the clams begin to prey on each other.

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 .