Answers

2015-07-08T21:46:03+08:00
The 3 major parts of the circulatory system are the brain, heart, and lungs (not sure)
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2015-07-09T07:56:42+08:00
Heart, blood and blood vessels
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the three major parts of circulatory is heart,blood and the blood vessels and the system of the three major parts is brain,heart,and lungs.