Across
- 5. branch of biology
- 8. farming, crops, work
- 9. a virus infects and uses to make copies of itself
- 11. form of asexual reproduction
- 12. the number of individuals in an area
- 13. sickness
- 14. new organisms produced by one or two parents
- 15. spreading rapidly
Down
- 1. mushrooms, yeasts, mold, rusts
- 2. a microorganism
- 3. simplest kind of life known on Earth
- 4. organism that causes disease
- 6. the science that uses very small things to make things such as medicine
- 7. non-living disease causing particle
- 10. a very small organism