Acertain skin lotion is a fine mixture of water and various oils. this lotion is cloudy and cannot be separated into oil and water by filtration or centrifuge. what type of mixture is it?

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 .