What is needed for photosynthesis that is not a reactant or light energy

Which of the following is an example of this type of co-evolution

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 .

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above