Across
- 1. salk/ developed a vaccine for polio
- 3. immunity/ accuired by the introduction of antibodies from an external source
- 4. system/ cleans out foreign substances (third line of defense)
- 7. fit onto the outside of a germ, like a key in a lock
- 8. oldest life form on earth, third highest cause of disease
- 11. responses/ how our body rids itself of germs
- 12. first line of defense
- 14. traps microorganisms
- 15. caused by heredity, unhealthy lifestyle, environmental, hazards, and normal aging process
- 17. system/ what can bacteria infect
- 18. resistance/ antibotics wont work
- 19. nodes, organs/ part of the third line of defense is:
- 20. response/ second line of defense
- 23. of body increases/ when the body has a general infection
- 24. once the invader has been identified ________ produce antibodies
- 25. medication to fight harmful disease
- 27. a type of blood cell and destroys pathogens
- 29. special white blood cells that remember specific pathogens
Down
- 1. can be caused by less then 1% of bacteria
- 2. if the infection is viral, cells release:
- 5. of area increases/ in the case of a cut chemicals are released and this causes:
- 6. bacteria/ our immune system protects us from harmful invaders such as:
- 9. washes away foreign bodies
- 10. when bacteria divides
- 13. caused by pathogens and are contagious
- 16. a dead or weekend form of the virus that is purposely introduced to the body
- 21. contains enymes and kills invaders
- 22. immunity/ ability for our immune system to "remember" pathogens and defeat it
- 26. deadly poision
- 28. bacteria with ________ connects to other bacteria