Answer:
the main site of gas exchange is in the lungs between the alveoli and a family of really small blood vessels called capillaries. Which are placed in the walls of the alveoli.
Explanation:
A vErY bAd ThInG THAT KIDS LIKE YOU SHOULDNT BE ASKING XD
False, the inventors claims were clearly not well tested
Where are the answer choices?
D. The hundred-thousands place.