Biology

6th -

8thgrade

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Circulatory & Respiratory Systems

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10 questions

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  • 1. Multiple Choice
    1 minute
    1 pt
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    The heart has ___ chambers.
    1
    2
    3
    4
  • 2. Multiple Choice
    1 minute
    1 pt
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    Thin-walled vessels that allow for the exchange of O2 , CO2, nutrients and wastes between blood cells or air sacs in the lungs
    Arteries
    Veins
    Capillaries
  • 3. Multiple Choice
    1 minute
    1 pt
    Image
    What does Deoxygenated mean?
    Oxygen-rich
    Blood flow
    Oxygen-poor
    Water Flow
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