immune system

12345678910111213141516171819202122232425
Across
  1. 3. Given usually as a shot
  2. 9. Vector living organisms that spread diseases.
  3. 12. Disease highly contagious and can be spread from person to person
  4. 14. System your bodies defense against germs.
  5. 15. create and protect good bacteria
  6. 16. diseases that are spread through unprotected sexual activities
  7. 18. blood cells protect the body from infection
  8. 19. Immunity antibodies that were produced in another organism
  9. 21. heating up liquids so that most bacteria in the liquid die before it is sold
  10. 23. destroy infected cancerous cells
  11. 24. recycles old blood cells
  12. 25. allergic reaction is overly strong and can cause the person discomfort
Down
  1. 1. respond to allergens
  2. 2. traps pathogen
  3. 4. outside of germs, that are foreign to our bodies.
  4. 5. assist in clearance of infectious agents
  5. 6. are NOT be spread from person to person.
  6. 7. marrow sponge tissue inside bones
  7. 8. a chemical that destroys cancer cells.
  8. 10. nodes filters out germs
  9. 11. Immunity When the body detects an illness or disease
  10. 13. attach themselves to the outside of the virus
  11. 17. patches prevents pathogen growth
  12. 20. Tiny little germs that require a host (your body) to multiply
  13. 22. a substance that causes an allergic reaction