Question

What is the function of the respiratory system? a:to break down food b:to breathe c:to transport materials in the body d:to rid the body of waste

Answer 1

Respiratory system

Step-by-step explanation:

The respiratory system's main job is to move fresh air into your body while removing waste gases. Once in the lungs, oxygen is moved into the bloodstream and carried through your body. At each cell in your body, oxygen is exchanged for a waste gas called carbon dioxide.