Which part of the digestive system is primarily involved in absorbing nutrients?.

The small intestine absorb most of nutrients in your food, and your circulatory system passes them on to other parts of your body to store or use.

The small intestine.

Explanation:

The small intestine, made up of three parts (duodenum, jejunum, and iluem), is responsible for dissolving foods and absorbing nutrients through the use of special enzymes.

carbon atoms, hydrogen, oxygen, and nitrogen.