Across
- 5. body's ability to destroy pathogens
- 6. white blood cells(WBC) that distinguish between different kinds of pathogens
- 7. when antibodies are given to a person
- 9. organism that causes disease
- 10. antigens of viruses purposely introduced into the blood
Down
- 1. identify the pathogen
- 2. body produces antibodies to fight pathogens
- 3. makers on cell surface that identify cell
- 4. produce proteins cell that destroys pathogens
- 8. 2nd line of defense