Explain how food is digested in the digestive system?

to anus

Explanation:

by digestion, ingestion, assimilation, and absorption

As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules. The body then absorbs these smaller molecules through the walls of the small intestine into the bloodstream, which delivers them to the rest of the body.

If a population is evolving, the allele frequency will change.
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