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: [[Digestion]] is done by the [[Digestive System|digestive systems]] of [[animal]]s.
===About Digestion in Humans===: [[Digestion]] begins in the [[mouth]] where [[teeth]] break the food into smaller pieces.: It continues in the [[stomach]] where [[chemical]]s known as [[enzyme]]s are added to break down large [[molecule]]s into smaller ones.: [[Digestion]] then continues in the [[Small Intestine|small intestine]] where large [[molecule]]s continue to be broken down.: Finally, when the [[molecule]]s are small enough, the [[Small Intestine|small intestine]] [[Absorb (biology)|absorbs]] the [[nutrient]]s into the [[blood]] stream.