human body system and some things in them

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Across
  1. 3. transports oxygen
  2. 4. lower part of the heart
  3. 6. protects the body from virus´s
  4. 7. organ system with the heart
  5. 10. makes blood a liquid
  6. 13. intestine that absorbs water
  7. 14. takes blood away from the heart
  8. 15. exchanges oxygen for carbon dioxide
Down
  1. 1. helps form a scab
  2. 2. system that eliminates cell waste
  3. 5. upper part of the heart
  4. 8. connects veins and arteries
  5. 9. allows you to get nutrients from food
  6. 11. takes blood from the heart
  7. 12. system that takes oxygen