The Body Systems

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Across
  1. 3. Filters waste products from the blood and eliminates them as urine.
  2. 4. brain
  3. 6. exchanges oxygen and carbon dioxide
  4. 7. breaks down food
  5. 9. hormones
  6. 10. circulates blood
Down
  1. 1. muscles
  2. 2. immune system
  3. 5. produce off spring
  4. 8. bones
  5. 11. skin