The brahman cattle have good resistance to high temperatures, but its meat is poor and tough to eat. the english shorthorn cattle, on the other hand, have good meat, but poor resistance to high temperatures. scientists formed the santa gertrudis cattle by breeding brahmans with english shorthorns. this new type of cattle has good meat and resistance to high temperatures. this is an example of

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 .