Nutrition in animals:
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Animals obtain their food from plants or other animals.
The different steps in the process of nutrition in animals are:
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Ingestion: The process of taking food into the body.
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Digestion: The process of breaking down complex food molecules into a simple and soluble from,which can be absorbed and used by the body.
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Absorption: It is the process of uptake of substance by tissue for their utilisation.
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Assimilation: It is a process through which nutrients are incorporated into the cells of the body and are utilised for energy,growth on repair.
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Egestion: It is a process through which undigested food material is eliminated from the body.