Question

respiratory and circulatory systems quick check
what function do the alveoli perform? (1 point)
exchange oxygen in the blood for carbon dioxide in the air
hold receptors for the sense of smell
carry oxygenated blood away from the heart
exchange oxygen in the air for carbon dioxide in the blood

Explanation:

Alveoli are tiny air - sacs in the lungs. Their main function is gas exchange, where oxygen from the air is taken into the blood and carbon dioxide from the blood is released into the air.

Answer:

exchange oxygen in the air for carbon dioxide in the blood