Chapter 6, 7, and 8 Crossword

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Across
  1. 3. disorder that causes a deficiency in a clotting factor
  2. 5. filters blood
  3. 8. clumping of red blood cells
  4. 11. disease-causing agents
  5. 12. the process of programmed cell death
  6. 14. white blood cells
  7. 16. protein that combines with and disables specific pathogens
  8. 19. if there are more cases of the disease than expected in a certain area/period of time
  9. 20. small circular pieces of DNA
Down
  1. 1. most abundant white blood cell
  2. 2. Thrombocytes
  3. 4. the rupturing of red blood cells
  4. 6. red blood cells
  5. 7. rarest white blood cell
  6. 9. stiff fibers that allow bacteria to adhere to surfaces such as host cells
  7. 10. global epidemics
  8. 13. epidemic that is confined to a local area
  9. 15. substances that contain an antigen to which the immune system responds
  10. 17. help to prevent entrance of pathogens by way of the nose and mouth
  11. 18. an elongated, hollow appendage used to transfer DNA from one cell to another