The main steps of nutrition in humans are _____ and _.

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Ingestion.

Digestion, Absorption.

Assimilation, Egestion

None of the above

answer is B.

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Detailed Solution

Five steps of nutrition in humans are Ingestion, Digestion, absorption, assimilation, and egestion.
Main steps of nutrition are digestion and absorption.
- Digestion is the process in which the food (it contains large, undoable motes, broken down into small, water answerable motes) is also digested by stashing of certain enzymes and it's also used by the cells for producing energy.
- absorption is the process in which the digested food passes throughout the intestinal wall, and then into the bloodstream. Our body cells use up the energy produced from the digested food for various bodily functions.

Hence, option B is the correct answer.

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