Other Sciences

6th

grade

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Respiratory and Circulatory System

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34 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt
    When Lily goes running, it causes the cells in her muscular system to use oxygen at a faster rate. Which system responds by delivering more oxygen to these cells?
    digestive
    circulatory
    nervous
    endocrind
  • 2. Multiple Choice
    1.5 minutes
    1 pt
    Your nose moistens and filters air. Your diaphragn is a muscle that controls air intake and your lungs perform gas exchange. 
    Which system performs all these functions?
    digestive
    circulatory
    respiratory
    skeletal
  • 3. Multiple Choice
    1.5 minutes
    1 pt
    Carbon dioxide is the gas transported by the circulatory system and is used by cells during respiration to release energy stored in foods.
    True
    False
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