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2015-09-10T10:32:23+08:00

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Respiration is very important because energy can only be formed thought it.Respiration also remove waste[co2]from the body.Respiration is the only process from which oxygen.
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2015-09-12T13:33:28+08:00

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I dont know reseach it and you will know not like this app it doesnt help anything
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