Answer:
UV radiation may cause negative regulators (tumor suppressors) to be under-expressed. UV radiation may cause positive regulators (oncogenic) to be over-expressed.
Explanation:
I found this on a quizlet. So credits to them- :)
They have a spine
hope it helps
Plasma, water, salt, protein, platelets
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.
<span>The cell uses oxygen to break down glucose which releases energy. This energy is stored in the form of ATP.</span>