What is the main function of the digestive system? A. to break down food into nutrients that can be circulated throughout the bo
dy B. to exchange oxygen and carbon dioxide gases within the body C. to protect the body against foreign substances, such as bacteria and viruses D. to send signals from one part of the body to other parts of the body
The answer is A. To break down food into nutrients that can be circulated throughout the body.
The three main functions of the digestive system are digestion, absorption, and elimination. <u>Digestion</u> is the process of breaking down food into nutrients and enzymes which can be useful for your body. Absoprtion is the process in which blood abosrbs the nutrients that come from the food to the rest of the body. <u>Elimination</u> occurs when the food molecules are abosrbed. Anywatse products are eliminated.
Heart. The reason behind this is harmful gases can cause many problems with the human body. It can effect the skin. Harming the skins natural barriers. It can harm the lungs. And your eyes are very soft. Your eyes cannot take that