The answer is b. The ability of all living things to maintain a relatively stable internal environment
The correct answer would be letter C.
Explanation:
Membrane proteins perform a variety of functions vital to the survival of organisms: Membrane receptor proteins relay signals between the cell's internal and external environments. Transport proteins move molecules and ions across the membrane. ... Cell adhesion molecules allow cells to identify each other and interact.
N colder near the poles go's with maritime/ polar air mass
The answer is low light intensity! I hope this helps!