stomach - This is a muscular bag, digestion - The process of breaking food down into smaller pieces, saliva - The liquid released in the mouth, rectum - This is where waste is stored before it leaves the body, enzymes - These molecules break down food into small pieces, acid - Produced in the stomach to kill bacteria, protein - This food group starts being broken down in the stomach, large intestine - This is where most of the water is absorbed., small intestine - This is where most of the nutrients are absorbed.,

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