mouth, digest carbohydrates, stomach, digest proteins, small intestine, digest fats, large intestine, absorb water, enzyme, speeds up digestion of food, overeating, leads to obesity, acid, kills bacteria in the food, faeces, undigested food, teeth, large pieces of food cut into smaller pieces, starch, a type of carbohydrate, respiration, carbon dioxide and water are produced, calorie, a unit of measurement of energy, saliva, makes the food moist for easy swallowing, tongue, rolls the food into a ball, gullet, food from mouth to stomach, undereating, poor growth, food, provides energy to do work.

Digestion

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