Biology

1st

grade

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Circulatory System

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20 questions

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  • 1. Multiple Choice
    45 seconds
    1 pt

    Which type of blood vessel has valves inside?

    Artery

    Vein

    Capillary

  • 2. Multiple Choice
    45 seconds
    1 pt

    Which type of blood vessel carries oxygenated blood?

    Artery

    Vein

    Capillary

  • 3. Multiple Choice
    45 seconds
    1 pt

    What sort of circulatory system is the human circulatory system?

    An open circulatory system

    A single circulatory system

    A double circulatory system

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