HELP IM ON A TIMMRRR

How does natural selection change thephenotypes within a population over time?

What is the significance of the protein-lined pits? a. protein attracts other proteins needed for atp synthesis within the cell. b. protein-lined pits are able to transport one molecule at a time down the concentration gradient within the cell. c. the polarity of proteins allows other polar molecules to attach and be transported in the cell by transport channels. d. receptors within the pits allow ligands to fuse and be transported into the cell by endocytosis.

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.