Need !
what is the function of a cell membrane?

(a)to control what enters and leaves the cell
(b)to maintain the size of the cell
(c)to form a hard outer covering for the cell
(d)to perform different functions in each cell

i think its b

explanation:

the form of energy changes and the total energy increases0l

explanation:

on disadvantage of hydroelectric power is the cost. another disadvantage of using hydroelectric power is finding a water source powerful enough to harvest hydroelectric power.

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.