FROG’S DIGESTION SYSTEM Frogs have a mouth, which serves as an insect trap. The mouth, consist of a tongue and two sets of special teeth. The frog has a large elastic gullet that allows it to swallow large prey. Food passes from the gullet through the tubular esophagus and then into the stomach. Then chemical digestion occurs in the stomach and the small intestine with the help of the digestive enzymes that are released by the liver and pancreas. (Giffard, R. & Nat, M 1986.) After digestion is completed nutrients are absorbed into the blood through the walls of the small intestines. The waste left over is moved into the large intestine where water is reabsorbed. Then the waste is eliminated through the cloaca and the anus. (Cooper, H, Hays, S, Walker.D, Linden R 1982) The frog has three lobed livers. The functions of t....

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