The Digestive System: Secretion 1.Of the approximately 9.0 L of fluids contained in the digestive tract daily, only __________ L are eliminated with the feces. 2.Of the approximately 800 g of food ingested during a typical day, only about ____ g are eliminated as undigested food in the feces. 3.Label the parotid, submandibular, and sublingual salivary glands in the figure below:
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