The adjectives "mechanical" and "chemical" describe two
a. actions needed to cook food.
b. ways to move substances in the body.
c. types of action that result in digestion.
d. ways molecules are transported into and out of cells.
C
Mechanical and chemical describe two types of action that take place in digestion. These adjec-tives describe processes that may be used to cook food, but are not needed to do so. Substances are moved in the body and into and out of cells by mechanical and chemical means, but these adjectives are not generally used for these processes.
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