describe the 3 stages through which food passes in the body of an animal from ingestion to egestion.
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Explanation:
In human beings, food needs to be processed and absorbed to obtain nutrients. This process consists of the following five steps:
Ingestion: Intake of food.
1.Digestion: Breaking down of food so that it can be absorbed by the body.
2.Absorption: The process of absorbing food in the form of nutrients into the blood stream of the body.
3.Assimilation: The process of nutrients being absorbed by each cell of the body in the form of energy.
4.Egestion: Secretion of waste, unwanted and excess substances from the body after food the as been digestion.
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