Across
- 1. outer layer
- 3. the way to detect if a pathogen is a pathogen
- 4. away from heart
- 6. cause scabs
- 10. spots pathogen
- 14. redness swelling and heat
- 16. kills virus
- 17. carries O2
- 18. kills antigen
- 19. toward heart
Down
- 2. skin nails hair
- 5. weak or dead strain of virus
- 7. kills bacteria
- 8. disease causing agent
- 9. cools body
- 11. connects and exchanges
- 12. moisturizes skin and hair
- 13. fights infection
- 15. inner layer