third line of defense for the immune system
Across
- 3. only take when you have a bacterial pathogen and permission from your doctor
- 5. recognises previous invaders to help build immunity
- 6. chew up invading germs
- 7. protien made by white blood cells
- 8. another name for a white blood cell
Down
- 1. a molecule with a specific shape on the surface of pathogens
- 2. proctection against specific pathogens
- 4. being protected against pathogens by releasing specfic antibodies