Biology, 03.08.2019 12:20 iilovejohnccena1022

Which of the following statements is true? -arteries are thinner and harder than veins. -the left ventricle controls the heartbeat. -veins carry blood away from the heart. -capillaries connect ateries and veins.

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Which of the following statements is true? -arteries are thinner and harder than veins. -the left v...

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