Across
- 2. causes botulism
- 6. changes nitrogen from the air into forms that plants and animals can use
- 7. grouped according to shape or structure
- 8. something taken to kill bacteria
- 10. organism that used oxygen when breaking down food
- 11. limits the growth of other bacteria
- 12. any organism that causes diseases
- 16. treated with antibiotics
- 18. they use bacteria to clean up environmental pollutants
- 19. not all bacteria are beneficial
- 20. poisonous substances
Down
- 1. they make their own food using carbon dioxide,water,sunlight
- 3. a consumer that helps maintain natures balance
- 4. the benifits of most bacteria far outweigh the harmful effects of a few
- 5. contains certain kinds of bacteria that are often found in extreme climates
- 9. anaerobic
- 13. contains chlorophyll
- 14. a process of heating food to a temperature to kill harmful bacteria
- 15. a process that produces two new cells with genetic material identical to each other
- 17. an organism that is adapted to live without oxygen