Answer:
E. elimination of nondigestible waste
Explanation:
The digestive system is a kind of alimentary canal, connecting several organs and communicating with several glands throughout the digestion process.
Its main functions are:
- food intake, grinding, dissolving and mixing food in the gastrointestinal tract (mouth);
- digestion of food (ground in the mouth and crushed in the stomach and intestines);
- absorb nutrients (small intestine) and water (thick intestine);
- and to eliminate some digestion wastes through feces.
The elimination of unnecessary products for digestion (excretion) is not a major function of the digestive system.
The main responsible for the elimination of nondigestible waste is, in the human body, the excretory system (sweat, urine and excretion of carbon dioxide in the breath), while the feces are, in the majority, constituted by digestion residues and bacteria that reside in the digestive tract. .