Across
- 3. the spreading of a disease over a large area
- 6. The simplest kind of life
- 7. The study of small living things
- 9. a substance used to destroy bacteria or disease causing organisms
- 13. they way single celled organisms reproduce
- 14. any microscopic life form
- 15. a tiny reproductive body from fungi and ferns
Down
- 1. a specimen modified to kill and protect a person or animal for disease
- 2. a new organism produced by one or two parent organisms
- 4. A small single celled organism
- 5. Has genetic material in a protein shell
- 8. the spreading rapidly to a great many individuals
- 10. a insect that carries a disease
- 11. Harms there host
- 12. cell a cell infected to make copies of a virus