immunity

4. are activated when they encounter the antigen on a cell
5. inmmunoglobulins,a blood protein produced in response to and counteracting a specific antigen
6. destroy invading pathogens and any toxic molecules they produce in the inmune system
10. are caused by pathogens
12. the invasion of bacteria, viruses, and parasites that are not normally present within the body
14. are chemicals or compounds used to cure, halt, or prevent disease
17. cells remain circulating in the blood for a long time
19. antibody mother cells duplicated made up by lymphocytes
20. has the ability to make one type of antibody

1. neutrophils and macrophages
2. produce antibodies
3. an example of an autoimmune disease
7. works by training the immune system to recognize and combat pathogens,viruses or bacteria
8. an microorganism that cause a diesease
9. is a diseases transmited by gens
11. unit of an organism
12. consists of physical, chemical and cellular defenses against pathogens in the inmune system
13. white blood cells
15. white blood cell that surrounds and kills microorganisms
16. best biology teacher ever
18. b-lymphocytes & t-lymphocytes