Answers

2015-06-09T13:36:41+08:00
Blood deliver's Oxygen,Nutrients, and food
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2015-06-09T17:18:29+08:00
In my own way of remembering this fact.. blood like gets oxygen from your lungs then distributes it to your whole body, trades the oxygen with carbon dioxide, and goes back to the lungs for exhalation :DD
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