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NCSCOS 7.L.1.4 - Systems for Energy (Circulatory, Respiratory, Digestive, Excretory)

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Grade 7
North Carolina Standard Course of Study

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Measures 1 skill from
Grade 7
North Carolina Standard Course of Study


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10 questions
Show answers
  • Q1
    Which activity describes the relationship between the circulatory system and the digestive system?
     The kidneys remove harmful wastes from the blood.
    Cells make antibodies in response to a virus.
    Red blood cells exchange carbon dioxide for oxygen.
    Nutrients are absorbed into the bloodstream.
  • Q2
    What does the circulatory system do for you when you exercise?
    It improves blood flow to supply cells with more oxygen.
     It moves more waste to the skin for body cooling.
    It lowers blood pressure to maintain equilibrium.
    It provides fewer nutrients for brain activity.
  • Q3
    Why does the heart pump faster during exercise?
    the contraction of blood vessels to muscles, increasing blood pressure
     the decreased demand for blood flow to central nervous system
    the greater demand for fuel and oxygen in the muscles
    the need for increased digestion to provide fuel
  • Q4
    How do the circulatory and urinary systems work together?
    Question Image
    The urinary system filters wastes from the blood.
    The circulatory system carries electrical messages to the kidneys
    The urinary system excretes wastes from the body.
    The circulatory system produces oxygen for the kidneys.
  • Q5
    What is the primary job of red blood cells?
    remove waste
    allow reproduction 

    fight disease
    transport oxygen

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