Biological Functions Digestive and Urinary systems Chamaeleonids have a rather simple digestive system. Once the food is seized between the jaws, it is crushed with their small, triangular teeth. chewed, and pushed with the help of the tongue from the mouth down to the esophagus and into the stomach, which is essentially tubu extremely active enzymes initiate a chemical reaction to start breaking down the ingested materials. The absorption of molecules and nutrients occurs in the intestinal tract which is rather short, and the wastes are excreted through the cloaca The and the pan easexed to the digestive system and help i the process. The urinary are distinct from the generative canals, although both lead to the doada. The feces and urine, excreted together as droppings, consist largely of urate suspended in a transpare jelly-like fluid.