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Unformatted text preview: The cells lining the digestive tract take up (absorb) the products of digestion-small molecules like amino acids and simple sugars. The nutrients then travel through the blood to the body cells o Elimination: Undigested material passes out of the digestive tract Digestive Compartments: o Gastrovascular cavity (single-openining->mouth) o Aliminary canal (two openings->mouth, anus Peristalis: process that moves food from the pharynx to the stomach by alternating waves of muscle contraction and relaxation Sphincters: regulate the passage of food into and out of the stomach...
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- Fall '11