Across
- 2. may also be caused by a pathogen, they are contagious
- 6. is an organism
- 7. are non photosythetic organisms and most are multicellualar
- 9. microorganism in the air
- 11. among the most widespread illnesses in humans caused by viruses
- 12. with more than 1 cell
- 15. a chemical that kills bacteria or slows their growth without harming body cells
- 16. nonliving particles composed of a nucleic acid (DNA or RNA) and a protein coat
Down
- 1. worldwide spread
- 3. located in only one location
- 4. animal like protists and called protozoa
- 5. able to be passed easily
- 8. substance preserved from killed or wrecked pathogens and introduced into a body to produce immunity
- 10. are prokaryotic single-celled organisms
- 13. only 1 cell
- 14. the host