all animals need to _material to different parts of their body .this is the function of the_system .the circulatory system consist of a liquid called_a pump called the _and a series of vessels called _,_and _
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The circulatory system is made up of blood vessels that carry blood away from and towards the heart. Arteries carry blood away from the heart and veins carry blood back to the heart. The circulatory system carries oxygen, nutrients, and hormones to cells, and removes waste products, like carbon dioxide.
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