A) Explain how each of the following three ecological disruptions would affect the number and size of trophic levels in an ecosystem
i. Decrease in the available sunlight
ii. Increase in the number of producers
iii. Increase in the availability of a resource that was limiting the herbivore population size
B) Describe the concept of trophic efficiency

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 .