Answer:
I have a chart for this if you'd like that it really helps to better understand the Nitrogen Cycle and how it works.
Hypotonic solutions are lowly concentrated solutions
Hypertonic are highly concentrated solutions
While isotonic have equally concentrated
When a cell is placed in a hypotonic sol water moves out of the cell by osmosis making the cell flaccid
I think it is the nervous system
the skin has cells like that