explain human transportation system
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The network of veins, arteries and blood vessels transports oxygenated blood from the heart, delivers oxygen and nutrients to the body's cells and then returns deoxygenated blood back to the heart. The system of blood vessels in the humanbody measure about 60,000 miles (96,560 kilometers).
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It's an easier way of learning the transportation system
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It's an easier way of learning the transportation system
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