Across
- 2. Immune response that is specific and has memory
- 4. Signal protein that warns cells about viruses
- 5. Ability to not attack your own cells
- 6. Proteins that help protect cells from viruses
- 7. Signal protein that helps slow down viruses
- 13. How immune cells show pieces of germs
- 15. White blood cells that help fight infections
- 17. When immune cells copy themselves
- 18. Cells that help the body respond faster next time
- 19. White blood cells that make antibodies
Down
- 1. Fast immune response present from birth
- 3. When macrophages increase their killing ability
- 4. Ability to remember past infections
- 8. T cells that help control immune responses
- 9. Molecule that tells NK cells a cell is healthy
- 10. When macrophages are fully turned on
- 11. Molecule used to show antigens to helper T cells
- 12. T cells that kill infected cells
- 14. Cycle where immune signals make the response stronger
- 16. Proteins that stick to germs