Chapter 20 - 23 - Crossword Labs

4. two different species live in close association to the mutual benefit of each other.
5. the smallest and simplest self-replicating bacterium.
10. bacteria that prefer moderate temps (77-104F).
12. kill viruses.
18. organisms that only survive on dead or dacaying organic matter.
19. organisms requiring little free oxygen.
20. kill bacterial mold spores.
22. a form of incineration.
24. the inhibition of one microorganisms growth by the presence of the other.
25. the harmonious action of 2 microorganisms produce an effect that neither could produce alone.
26. kill both fungi and its spores.

1. the host is harmed, while the parasite receive some benefit.
2. When 2 or more different species, live together in close association.
3. shaped like a ball or sphere.
6. self-nourishing bacteria.
7. offers the highest level of microbial growth control.
8. before nucleus.
9. exists when 1 organism gains some benefit and the host is not harmed.
11. bacteria that prefer cold tempuratures (32 - 77F).
13. a genus of rod-shaped, gram-negative, intracellular parasitic bacteria.
14. refers to the size, shape, and arrangement of bacteria.
15. bacteria that require complex organic food from a carbon source.
16. bacteria that grows best in high temps (104-158F).
17. long, whip-like, filament-containing appendages that propel the bacteria.
21. a thick-walled cell produced by a bacterium to enable it to survive unfavorable environmental conditions.
23. rod shaped bcteria.