Across
- 4. used to treat harmful bacteria
- 7. what is the first step of the immune response
- 8. Are composed of a weakened or dead pathogen that triggers our white blood cells to produce antibodies to fight a specific pathogen
- 9. The antibodies must fit perfectly with the ___on a pathogen
- 10. White blood cells are found in the ____
- 11. how many steps in the immune response
Down
- 1. What do white blood cells do to pathogens in the second step of the immune response
- 2. A bacteria or virus or fungi that can cause a disease
- 3. On the surface of a pathogen
- 5. Once you have been exposed to a pathogen, your white blood cells remember the antigens on the pathogen
- 6. What do white blood cell create in the 3rd step of the immune response