| 1. | An improper nitrogen cycle, inappropriate stresses on ornamental fish in a tank.
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| 2. | Nitrification could potentially become a " bottleneck " in the nitrogen cycle.
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| 3. | Enceladus has an active hydrological, silicate and possibly a nitrogen cycle.
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| 4. | Epiphytic bacteria found in the marine environment have a role in the nitrogen cycle.
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| 5. | The carbon and nitrogen cycles of ecosystems will be curtailed and soil stability endangered.
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| 6. | Nitrogen fixation is an important part of the nitrogen cycle.
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| 7. | The effects of such an occurrence would reverberate throughout the food web, and nitrogen cycle.
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| 8. | The nitrogen cycle refers to the conversion of toxic ammonia to nitrite and finally nitrate.
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| 9. | Like all Tanganyikans, " L . ocellatus " are quite sensitive to the nitrogen cycle.
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| 10. | The biochemistry is better explained in this book : " Biology of the nitrogen cycle"
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