What is the definition of metabolism

Metabolism can simply be defined as a process in which food taken into the body is converted to energy.

Explanation:

Metabolism can simply be defined as a process in which food taken into the body is converted to energy.

It occurs in both plants and animals.

This occurs in different stages, which are

First, Nutrients in food are  being digested into absorb-able units into the blood and they are move into the tissue, then, this nutrients are now made into macro-molecules which is then broken down into pyruvic  and glycolysis

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the answer would be..

b. sucking