Question

what is one of the main functions of the large intestines? break down food chemically break down food physically absorb nutrients absorb water

Explanation:

• Chemical breakdown of food mainly occurs in the stomach (via gastric juices) and small intestine (via enzymes), so the first option is incorrect.
• Physical breakdown of food happens in the mouth (chewing) and stomach (churning), so the second option is incorrect.
• Absorption of most nutrients occurs in the small intestine, so the third option is incorrect.
• The large intestine's main functions include absorbing water and electrolytes from the remaining indigestible food matter, forming and storing feces. So "absorb water" is a main function of the large intestine.

Answer:

D. absorb water