Question

write these sentences in the correct order to explain gas exchange
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:

its a mess after a give a line for b this looks like a