The blood vessels dilate to increase the "blood traffic" through the lungs to carry more oxygen to the muscle. The lungs work harder (faster respiratory rate) to increase the rate of oxygen/carbon dioxide exchange in the lungs.
Answer:
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Explanation:
Postnatal care ?? If it is mother and baby. Hope this helps a bit :)
Mind answering my question about the moon is the same as I did with you and your friend that I did you put in your mouth
I would say A. The three other choices could lead to its start.
