Egestion. Ingestion is the in take of food. Digestion is the physical or chemical breakdown of food, so that it can be absorbed into the blood stream. Absorption is the release of digested food into the blood stream. Assimilation is the use of digested food in the organisms cells.
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Egestion. Ingestion is the in take of food. Digestion is the physical or chemical breakdown of food, so that it can be absorbed into the blood stream. Absorption is the release of digested food into the blood stream. Assimilation is the use of digested food in the organisms cells.