ingestion - take food in, chemical digestion - breaking macromolecules into smaller subunits using enzymes, mechanical digestion - physically breaking down food , elimination - removal of waste, absorption - movement of nutrients into blood , defecation - removal of feces, inspiration - inhaling; moving air into the lungs, expiration - exhaling; expelling air from lungs to atmosphere, ventiliation - inhaling and exhaling , rugae - folding in the stomach , enzymes - proteins that speed up chemical reactions, hydrolyze - breaking something using water , gas exchange - exchanging O2 or CO2 between the air and the blood, goblet cells - cells that secretes mucus , conducting zone - zone where air passes and is filtered , respiratory zone - where gas exchange occurs ,

Digestion, Respiration and Urinary

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