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Arteries are thicker than veins. Veins are thin and have valves so the blood doesn't flow backwards when it returns to the heart.
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Arteries are thicker than veins. Veins are thin and have valves so the blood doesn't flow backwards when it returns to the heart.
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Feb 14, 2022
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Arteries are thicker than veins. Veins are thin and have valves so the blood doesn't flow backwards when it returns to the heart.
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Bewusstsein
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Answer:good to know
Step-by-step explanation:
Purvik Dhorajiya
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Feb 18, 2022
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Purvik Dhorajiya
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