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 think it is :
A) To move air toward the lungs while warming, moistening, and filtering it.
True in some cases
Explanation:
There are 4 known drugs that can produce a calming effect by slowing the brain and reducing the heart rate.
These are:
-Anti-psychotic
-Anti-anxiety
-Analgesic
-Endocrine
