What is the job of the valves inside the veins of the legs? | StemPy Lab

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What is the job of the valves inside the veins of the legs? | StemPy Lab

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What is the job of the valves inside the veins of the legs?

BiologyEasyHigh School (9–10)GeneralLife Processes › Excretion Human Body › Excretory System

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What is the job of the valves inside the veins of the legs?

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