Blood Crossword Puzzle

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Across
  1. 4. Allergic response, Histamine, Heparin
  2. 6. little sacs that contain enzymes
  3. 7. Immunity
  4. 9. Phagocytosis
  5. 10. Dark red
  6. 12. require for blood clotting
  7. 13. formation of white blood cells
  8. 15. platelets
  9. 16. accounts for 95% of red blood cells
  10. 17. is the binding site of the Oxygen
  11. 19. White blood cells
  12. 20. include antibodies and transport protein
Down
  1. 1. formation of all blood cells
  2. 2. Primarily attacks parasites
  3. 3. Found in tissues
  4. 5. Red blood cells
  5. 8. formation of Thrombocytes
  6. 11. formation of erythrocytes
  7. 14. found in blood
  8. 18. protein,combines with O2,4 hememolecules that house an iron molecule