whihc of the folloing is the main function of the respiratory system

A.moisturize and filter the air before entering the body
B. porovides oxygen to the bodys cells and remove carbon dioxide
c.control of the body and communication among its parts
d. to conver food into energy and basic nutrients to feed the body

1 answer

The main function of the respiratory system is:

B. provides oxygen to the body's cells and removes carbon dioxide.

This function is essential for cellular respiration, which produces energy for the body's cells.