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how will you described the sequence of oxygen,carbon dioxide,and blood flow in your own words??
 pls help me:)


Sagot :

When we exhale the oxygen enters our respiratory system and the circulatory system transports it to the different parts of our body. When the oxygen is transported the blood becomes deoxygenated and now carries carbon dioxide which will be returned to the hearts then to the lungs, and we exhale it.