TICKS!

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Across
  1. 9. Process by which DNA is copied
  2. 12. Ability of a host to resist infection
  3. 14. Drug used to treat bacterial infections
  4. 15. Genus of spirochete bacteria that causes Lyme disease
  5. 18. Disease-causing microorganism
  6. 19. Organism that harbors a pathogen
  7. 20. Molecule that carries genetic information
  8. 22. Complete genetic material of an organism
  9. 23. Arthropod vector that spreads Lyme disease
  10. 24. Invasion and multiplication of microorganisms in a host
  11. 25. Cell lacking a membrane-bound nucleus
Down
  1. 1. Animal population that maintains a pathogen in nature
  2. 2. Establishment of microbes within a host
  3. 3. Protective outer layer of many bacteria
  4. 4. Spiral-shaped bacterium responsible for Lyme disease
  5. 5. Organism that transmits a pathogen between hosts
  6. 6. Immune response to infection or injury
  7. 7. Microscopic living organism
  8. 8. Disease transmitted from animals to humans
  9. 10. Molecule recognized by the immune system
  10. 11. Degree of pathogenicity of a microorganism
  11. 13. Spread of a pathogen from one host to another
  12. 16. Genus of ticks that transmits Lyme disease
  13. 17. Single-celled prokaryotic microorganism
  14. 21. Protein produced by the immune system against antigens