The diagram below shows the lungs, which are the main organs in the respiratory system. What is the main function of the respiratory system?%0D%0A%0D%0A%0D%0A%0D%0A(1 point)%0D%0AResponses%0D%0A%0D%0Ato exchange oxygen and carbon dioxide gases within the body%0D%0Ato exchange oxygen and carbon dioxide gases within the body%0D%0A%0D%0Ato protect the body against foreign substances, such as bacteria and viruses%0D%0Ato protect the body against foreign substances, such as bacteria and viruses%0D%0A%0D%0Ato break down food into nutrients that can be circulated throughout the body%0D%0Ato break down food into nutrients that can be circulated throughout the body%0D%0A%0D%0Ato send signals from one part of the body to other parts of the body

Answer 1

The main function of the respiratory system is to exchange oxygen and carbon dioxide gases within the body.