The process of digestion in humans is completed in:
(a) oesophagus    (b) small intestine    (c) stomach    (d) large intestine

Correct Answer: (d) Large intestine

Explanation: In the large intestine, water is removed and the intestinal bacterias break down some indigestible materials, producing important compounds (such as vitamin K).

This concentrated waste material is called feces, which is passed into the rectum and eliminated from the body through the anus.