Asked by s

Priya’s class is discussing respiratory rate and the body’s breathing process. Priya raises her hand and asks Mr. Owens, their teacher, “Do we breathe out the same air we breathe in?” How is Mr. Owens MOST likely to respond?

(1 point)

Yes, the body exchanges its used oxygen for the fresh oxygen breathed in.


Yes, the oxygen is simply cycled through the lungs so nutrients can be absorbed.


No, we breathe in oxygen and breathe out carbon dioxide.


No, we breathe in carbon dioxide and breathe out oxygen.

All Answers 1

Answered by GPT-5 mini AI
No, we breathe in oxygen and breathe out carbon dioxide.

(Oxygen is used by cells for energy; carbon dioxide is a waste product carried back to the lungs and exhaled.)