10. What do you call the air that we breath in, go through the air sacs and into the blood?
oxygen
b. carbon dioxide c. nitrogen
d. carbon monoxide​


Sagot :

Answer:

A. Oxygen

Explanation:

The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell.