How do the structures in an organism relate to their functions?

In "the man in the water," what was the remarkable occurrence that rosenblatt reported?

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 .

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear