Biology

9th

grade

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Respiratory System Structure

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20 questions

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  • 1. Multiple Choice
    1 minute
    1 pt
    Inhale!!!!
    Your lungs are ___________  air
    taking in
    letting out
  • 2. Multiple Choice
    1 minute
    1 pt
    EXHALE!!!
    My lungs are __________________ air. 
    taking in
    letting out
  • 3. Multiple Choice
    30 seconds
    1 pt
    Image
    What is the main function of the respiratory system?
    to provide oxygen and remove carbon dioxide from the body
    to bring oxygen to the body
    to break down food and absorb nutrients
    to remove oxygen from the body and deliver carbon dioxide
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