Visual Reading Tool: Photosynthes,
Sool: Photosynthesis and Chemosynt
Write the names of the reactants and produ
nts and products of photosynthesis and chemosynthesis.

the answer is "a.) well–developed vascular system."

explanation:

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.