B.To Understand group behavior through observation
A contractile vacuole works just the same as the name suggests, in that it expands and contracts. The point of the contractile vacuole is to pump water out of the cell through a process called osmoregulation, the regulation of osmotic pressure. It occurs in freshwater protists, but mainly in the kingdom Protista as a whole.
Answer:
the action or process of precipitating a substance from a solution.
Explanation:
I hope this helps you!
Answer one is D
Answer two is B
Answer three is C
If I’m wrong tell me
