B3 2.1 The circulatory system and the heart
- Created by: Danielle Trout
- Created on: 28-04-13 14:04
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- B3 2.1 The circulatory system and the heart
- Human beings have a double circulation.
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- The circulation system consists of the blood vessels, the heart and the blood.
- The heart is an organ that pumps blood around the body.
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