Which of these is a technique used in forest management, farming, prairie restoration or greenhouse gas abatement where a fire is started intentionally during the cooler months to reduce fuel buildup and decrease the likelihood of serious hotter fires. it also stimulates the germination of some desirable forest trees, thus renewing the forest. a) arson b) controlled burn c) developmental burn d) restructuring burn

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 .