Answer:It is known as a concentration gradient which in diffusion will always flow from ares of high concentration to areas of low concentrations
So i believe the answer to this is A.
Explanation:
Peremeability ,<span>Water can pass freely through the cell membrane.</span>
This helps them to reproduce much more quickly and without much effort
Answer:
the size of something from one end to the other; how long something is
- Running race track
- tree