Question

In the lungs, oxygen diffuses into the bloodstream, and carbon dioxide diffuses out through _[blank]_.


veins


alveoli


arteries


kidneys

Answer 1

the answer is avoli, because they are the smallest part of the lungs so the carbon dioxide goes back through the blood stream to be reoxygenated by the pulmonary system.

Answer 2

Answer:

The alveoli

Explanation: