Answers

2014-06-18T17:04:31+05:30
Circulatory system consists of heart, blood and blood vessels. Write about blood cells. Types of blood vessles.
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2014-06-18T17:08:51+05:30
Circulatory system role is to  oxygen delivery, anti bodies, tissue repair, organ function. 
Blood Flow is vital to every living tissue and organ in the human body.
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