Biology

9th -

12th

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Respiratory System

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20 questions

  • 1. Multiple Choice
    30 seconds
    1 pt
    Image
    When you breathe, your lungs take in ___ and remove ___. 
    air/oxygen
    oxygen/carbon dioxide 
    carbon dioxide/waste 
    waste/air 
  • 2. Multiple Choice
    30 seconds
    1 pt
    Image
    The air sacs that are covered with capillaries where gas exchange takes place
    bronchi
    lungs
    oxygen
    alveoli
  • 3. Multiple Choice
    30 seconds
    1 pt
    Image

    Flap of tissue that covers the opening to the windpipe during swallowing

    Pharynx

    Trachea

    Epiglottis

  • Answer choices
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    Answer choices
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