circulatory system in human?
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it consists of veins arteries and capillaries
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the process of diffusion is too slow to work in higher animals including humans in such animals a well developed pickup and delivery system known as a circulatory system is present in the circulatory system the blood delivers food and oxygen to Every cell in the body it also carries face away from Every cell in the body. the circulatory system consists of the blood, blood vessels and the heart. the blood vessels include the arteries veins and capillaries.
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