A=diffusion
b=exocytosis
c=osmosis
D=endocytosis
E=facilitated diffusion
I think its C. , maybe ;)
Not sure what the choices are but a biotic factor is anything living.
A macromolecule is a very large molecule, such as protein, commonly created by the polymerization of smaller subunits (monomers). ... The most common macromolecules in biochemistry are biopolymers (nucleic acids, proteins, carbohydrates and lipids) and large non-polymeric molecules (such as lipids and macrocycles).
