Immune system

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Across
  1. 2. another word for immune system, groups of specific things working together
  2. 5. drug used to treat bacterial infections
  3. 7. occurs when white blood cells surround bacteria in order to destroy it.
  4. 8. produces lymphocytes to attack the bacteria
  5. 10. anitbodies are given to a person instead of making their own
  6. 11. a type of white blood cell that helps make antibodies
  7. 13. bacteria, viruses, chemicals; infectious to the body
  8. 16. bacteria evolve to become stronger and less likely to be killed
  9. 17. barriers that fight off infection and germs like skin and mucus
  10. 18. smallest unit that can live on its own
  11. 19. develop from the bone marrow and protect the body
  12. 20. body creates the antibodies before being exposed to them
Down
  1. 1. body produces antibodies to fight off a bacteria
  2. 3. introducing small samples of a disease to build protection
  3. 4. viral reproduction of inserting bacteria into the cells own DNA
  4. 6. organs, cells, and proteins that protect the body
  5. 9. destroys cancer cells and parasites in your body
  6. 12. body is slightly exposed to a disease in order to gain resistance
  7. 14. virus hijacks its host cell to replicate itself
  8. 15. a protector of the body to stop infections