Across
- 3. ____________ redundancy In health soil ecosystems there are several organisms that carry out similar tasks
- 4. Fungus-root association that benefits both plant and fungus
- 7. contains chlorophyll
- 10. The limiting resource determining microbial growth
- 13. ____________ producers form the base of the food web by photosynthesizing
- 14. (.1-2 mm) Mites, springtails, worms
- 17. predominant bacteria in the soil (40%)
- 19. Contribute 30-50% of the organic matter microbes feed on
- 20. Millimeter of soil closes to the root surface
- 21. Sporulating ________ - Clostridium, C. tetani, C. botulinum, Axotobacter – fixes N
Down
- 1. vascular plants, bryophytes (mosses)
- 2. Soil organism responsible for breaking down lignin
- 5. gophers, mice, ants, beetles, termites, grubs
- 6. (.1mm) nematodes, rotifers, amoebae
- 8. attack wide variety of organic substrates (pesticides)
- 9. Consumers that eat plants
- 11. (5-20%) Many produce antibiotics. Responsible for the smell of soil
- 12. (<.1mm) Root hairs, Algae, fungi, bacteria, cyanobacteria
- 15. Impact soil by burrowing and mixing
- 16. Most numerous soil organism
- 18. Type of microorganism that decomposes dead tissue