Across
- 8. Process where bacteria turn the nitrogen-rich dead organisms into ammonium, which can be picked back up by plants and used again.
- 10. process through which specialized bacteria convert ammonia into nitrite (NO2), and then nitrate (NO3-)
- 12. process where bioavailable Nitrogen is converted back into atmospheric Nitrogen.
Down
- 1. turning atmospheric nitrogen into nitrogen living things can use.
- 2. element with atomic number of 7 (7-protons), makes up proteins and nucleic acids and is therefor necessary for life. It also makes up 78% of our atmosphere
- 3. Name for N2 ("Nitrogen in _______")
- 4. areas of low oxygen
- 5. Name for NH4
- 6. Name for NO3
- 7. can "fix" or convert unusable atmospheric Nitrogen to useable Nitrogen for producers like Alfalfa or soybeans
- 9. Niche of bacteria and fungi
- 11. Name for NO2