Across
- 2. Barriers Physical defenses like skin and mucus
- 4. Killer Cells Destroy infected and cancerous cells
- 5. Disease-causing microorganisms
- 9. White blood cells that engulf pathogens
- 10. Cells Immune cells that kill infected cells
- 11. Phagocytic white blood cells
- 14. Memory No memory of previous infections
- 17. Barriers Internal defenses such as fever and acid
Down
- 1. Response causing redness, heat, swelling, and pain
- 3. Elevated temperature that slows pathogens
- 6. Contain enzymes that kill bacteria
- 7. Physical barrier against pathogens
- 8. Immunity Immediate, non-specific defense
- 12. Engulfing and digesting pathogens
- 13. Body’s ability to fight disease
- 15. Membranes Trap microbes with mucus
- 16. Acid Destroys many swallowed pathogens