Biology

6th -

8thgrade

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Circulatory system

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4 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    receives returning blood that is low in O2 and high in CO2
    right ventricle
    right atrium
    dab
    aorta
  • 2. Multiple Choice
    30 seconds
    1 pt
    Left Atrium
    a significant source where oxygen  flows to go into the heart
    receives blood from the heart to go to the lungs
    on the left side or the aorta
    receives O2 rich blood from the lungs from the pulmonary vein.
  • 3. Multiple Choice
    30 seconds
    1 pt
    Image
    What is #5
    blood
    lungs
    aorta
    heart 
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