The main function of the small intestine is:
D. It passes digested food into the blood.
Explanation:
1. The small intestine is a vital part of the digestive system.
2. Its primary role is to further break down the food coming from the stomach.
3. Through the process of digestion, nutrients from the food are absorbed into the bloodstream.
4. These nutrients provide energy and essential elements for the body to function properly.
5. The small intestine plays a crucial role in this absorption process, allowing nutrients to pass through its walls into the bloodstream for distribution to cells throughout the body.
