Question

Which are the functions of the respiratory system?

to bring in oxygen and remove carbon dioxide from the body


to bring in oxygen and use it to break down glucose for energy


to bring in carbon dioxide and remove oxygen from the body


to break down glucose and remove the carbon dioxide

Answer 1

The answer is A)

to bring in oxygen and remove carbon dioxide from the body

Answer 2

I believe its A, "to bring in oxygen and remove carbon dioxide from the body"