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Circulatory system
Term | Definition |
---|---|
Independent Variable | The variable that is manipulated or changed. |
Dependent Variable | The variable that can be measured in some way. |
Controlled Variable | The variable that is not changed. |
Artery | Have very thick walls and carry blood away from the heart. |
Veins | Have very thin walls and carry blood toward the heart. |
Blood | Are really red blood cells and are tiny enough to fit into the smallest blood vessel. |
Heart | Collects oxygen and rids of carbon dioxide. Is made of cardiary muscle |