Answer:A
Explanation:These are called Alveoli.They inflate when a person inhales and deflates when a person exhales. During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs.
Answer:
I have to know what the following is...
Explanation:
Answer:
I'm pretty sure it's c, transverse
Applies only in the dental field
deciding to end a relationship