How do unicellular organisms living in water control the entry/exit of water from their cells? are they able to live in any environment? how could this be tested?

How do cells grow and reproduce to maintain homeostasis?

Which layer will become saturated first when rain falls?

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 .