Question

to write these sentences in the correct order to explain why gas exchange takes place in your alveoli.
a. The air you breathe is 21% oxygen, 0.04% carbon dioxide.
b. The blood delivers carbon dioxide to your lungs.
c. Your cells use up oxygen and produce cardon dioxide.
d. Your blood delivers oxygen to your cells.
e. Carbon dioxide enters your blood.
f. Only 0.04% of the air is carbon dioxide, so it diffuses out of the blood.
g. So oxygen from air in alveoli into your blood
h. The air you breathe out has about 18% oxygen, 3% carbon dioxide

Answer 1

Answer:

Explanation:

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Answer 2

At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli. ... Gas exchange allows the body to replenish the oxygen and eliminate the carbon dioxide.

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