Answers

2014-06-18T14:43:27+08:00
The heart pumps out blood to circulate to the different parts of the body. Therefore, exchanging of deoxygenated and oxygenated blood takes place to the chambers of the heart.
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2014-06-19T02:38:28+08:00
The heart pumps the blood for the blood to transport to the different parts of the body.
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