I think the answer is..... C.....
Answer:
A type of diffusion that happens within membrane
Answer:
they are important because if you did not know what boiling point is on water or freezing point is then it would be pointless in trying to make ice or boil water for food
Explanation:
Answer:
Well, Earth is the same way! Earth is made up of several different layers, each of which has unique properties. Both parts of the core are made up of mostly iron and some nickel. The difference is that in the inner core, those minerals are solid and in the outer core, they're liquid.
D: faulting hope i could help