badliar
badliar
27-04-2018
Biology
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What remains constant during digestion?
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Purplamabogwinee
Purplamabogwinee
27-04-2018
hello!!
In the human digestive system, food enters the mouth and mechanical digestion of the food starts by the action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva.
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