Across
- 2. parasite
- 4. chemical digestion
- 6. requires a host
- 8. what type is it
- 13. protozoa
- 14. infectious
- 15. mushrooms
- 16. abnormal infectious protein
- 17. keeps sickness away
Down
- 1. direct or indirect?
- 3. defends your body
- 5. how it get outs
- 7. who gets it
- 9. how it spreads
- 10. how it gets in
- 11. stimulates an immune response
- 12. stimulates defense