Answer: Cellulose, a component of plant cell walls, is the most abundant organic compound found on earth.
Explanation:
Explanation:
Cell membranes are selectively permeable. Some solutes cross the membrane freely, some cross with assistance, and others do not cross at all. A few lipophilic substances move freely across the cell membrane by passive diffusion. ... Large molecules do not cross intact cell membranes, except in certain special cases.
They both need nutrients and are able to reproduce