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