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Body Systems Practice

Choose the main body system that is involved in each scenario.

  1.  
    Breathing in oxygen with your lungs.
    A. respiratory system B. excretory system C. circulatory system
  2.  
    Peeing a lot because you drank too much water.
    A. excretory system B. digestive system C. skeletal system
  3.  
    Using your brain and studying for your Biology test.
    A. muscular system B. immune system C. nervous system
  4.  
    Using your brain and studying for your Biology test.
    A. digestive system B. endocrine system C. integumentary system
  5.  
    Carrying oxygen to all of the body cells via the blood.
    A. circulatory system B. respiratory system C. reproductive system
  6.  
    Getting a fever to fight off an infection.
    A. skeletal system B. excretory system C. immune system
Answer Key
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Body Systems Practice (Answer Key)

Choose the main body system that is involved in each scenario.

  1.  
    Breathing in oxygen with your lungs.
    A. respiratory system B. excretory system C. circulatory system
  2.  
    Peeing a lot because you drank too much water.
    A. excretory system B. digestive system C. skeletal system
  3.  
    Using your brain and studying for your Biology test.
    A. muscular system B. immune system C. nervous system
  4.  
    Using your brain and studying for your Biology test.
    A. digestive system B. endocrine system C. integumentary system
  5.  
    Carrying oxygen to all of the body cells via the blood.
    A. circulatory system B. respiratory system C. reproductive system
  6.  
    Getting a fever to fight off an infection.
    A. skeletal system B. excretory system C. immune system

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