Answers

2015-07-01T04:09:59+08:00
Respiration :-) I'm not sure hope it helps :-\. Kasi diba ung lungs ay part ng Respiratory system
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2015-07-01T08:55:56+08:00
When you inhale an oxygen it goes to our lungs in the alveoli where the oxygen exchange to carbon dioxide so the carbon where going out of your lungs and that cause an exhale..
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