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Destiney Edwards
20 February, 23:50
Why do we need oxygen?
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Gaven Mills
21 February, 00:34
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We breathe because oxygen is needed to burn the fuel sugars and fatty acids in our cells to produce energy. Oxygen is brought into the lungs via breathing, where it is transported by red blood cells to the entire body to be used to produce energy.
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Natalee
21 February, 02:18
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because we use that to live
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