digestion, The process of breaking down food into nutrients., nutrients, Small substances from food that the body uses for energy and growth., carbohydrates, Nutrients that give quick energy., proteins, Nutrients that help the body grow and repair itself., fats, Nutrients that give long-lasting energy and protect organs., minerals, Nutrients needed in small amounts to stay healthy., water, A nutrient needed for every body process., peristalsis, Muscle movements that push food through the digestive system., saliva, Wet liquid in the mouth that starts digestion., enzyme, A chemical that breaks down food., absorption, When nutrients move from the digestive system into blood., elimination, Removing solid waste from the body., mechanical digestion, Breaking food into smaller pieces physically., chemical digestion, Breaking down food using enzymes., small intestine, The organ where most digestion and absorption happen., large intestine, The organ that absorbs water and forms waste.

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