Question

why do we need to exchange oxygen and carbon dioxide____​

Answer 1

Answer:

we need to exchange oxygen and carbon dioxide to live and maintain the balance of our body

Answer 2

the primary function of the respiratory system to exchange oxygen and carbon dioxide. inhale oxygen enters the lungs and reaches alveoli..... oxygen passes quickly through this air-blood barrier into the blood in the capillaries. similarly, carbon dioxide passes from the blood into the alveoli and is then exhaled.