Science
Across
- 3. can be made from damaged particles taken from bacterial cell walls or from
- 8. any organism that causes disease
- 10. a process of heating food to a temperature that kills most harmful bacteria but causes little change to the taste of the food
- 13. a process that produces two new
- 14. chemicals that limit the growth of other bacteria
- 15. spiral-shaped bacterial cells
- 18. whip-like tails to help bacteria move
- 19. an organism that is adapted to live without oxygen
- 20. any organism that uses dead organisms as food and energy sources
- 21. what causes diseases
- 22. exist in many shapes and sizes
Down
- 1. change nitrogen from the air into forms that plants and animals can use
- 2. using organisms to help clean up or remove environmental pollutants
- 4. secrete glass-like boxes around themselves
- 5. sphere-shaped bacterial cells
- 6. with genetic material identical to each other
- 7. bacteria pathogens can produce poisonous substances
- 9. rod-shaped bacterial cells
- 11. an organism that uses oxygen when breaking down food
- 12. bacteria
- 16. have two flagella
- 17. one-or many- celled organism that lives in moist or wet surroundings