Biology Assignment

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Across
  1. 3. Slow down heart rate.
  2. 7. Stop breathing underwater.
  3. 9. Pump blood through the whole body.
  4. 12. Gives color to red blood cells.
  5. 13. waste product of kidneys
  6. 14. Lack of red blood cell
  7. 15. Swelling and bleeding in gums.
Down
  1. 1. Transport all substances except oxygen.
  2. 2. Soft bend bones, bald legs.
  3. 4. A chronic disease.
  4. 5. Process of inhale and exhale of air.
  5. 6. Oxygen-carrying cells in bloodstream.
  6. 8. A slippery membrane
  7. 10. Form blood clot that stops bleeding.
  8. 11. Protect our body from infection.