Immunity

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Across
  1. 3. adaptive immune system
  2. 5. initial barrier
  3. 7. targets pathogens
  4. 8. leukocyte white blood cells
  5. 11. substance triggers immune system
  6. 12. ability of bacteria to withstand effects
  7. 14. immune response
  8. 16. disease triggers
  9. 17. innate immune system
  10. 18. organ that filters blood
  11. 19. stimulates disease
  12. 20. acquired through natural process
Down
  1. 1. ingesting foreign material
  2. 2. central role
  3. 4. disease causing agent
  4. 6. network of cells, tissue, and organs
  5. 9. given antibiotics
  6. 10. blood transport oxygen
  7. 13. specialized proteins
  8. 15. medical inversion