Question

Select the correct answer.

Which feature helps to maximize the volume of gases exchanged during internal expiration?
A.
the level of oxygen in the blood
B.
the level of carbon dioxide in the blood
C.
the level of oxygen in the alveoli
D.
the shape of the alveoli
E.
the shape of the lungs

Answer 1

I believe your answer is E

Answer 2

The answer is D, the shape of the alveoli.

Step-by-step explanation:

Just took the test and the answer above is wrong