| 21. | Some plants have coevolved with nitrogen fixing bacteria, making plants an important part of the nitrogen cycle.
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| 22. | "Nitrobacter " plays an important role in the nitrogen cycle by oxidizing nitrite into nitrate in soil.
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| 23. | These organisms play a crucial role in benthic ecosystems, forming essential food chains and participating in the nitrogen cycle.
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| 24. | They are important in the nitrogen cycle by increasing the availability of nitrogen to plants while limiting carbon dioxide fixation.
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| 25. | Abundance of microbial genes associated with nitrogen cycling as indices of biogeochemical process rates across a vegetation gradient in Alaska.
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| 26. | Nitrous oxide, N 2 O, is a natural part of the nitrogen cycle, but human land uses often add more.
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| 27. | The focus of his research is on elucidating the molecular microbial ecology and metabolic pathways of the microbial nitrogen cycle.
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| 28. | Three planetary thresholds have already been crossed, including 1 ) biodiversity loss, 2 ) climate change, and 3 ) nitrogen cycles.
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| 29. | Horseshoe vetch notwithstanding, bacteria play a crucial role in the nitrogen cycle and in many other processes that help sustain life.
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| 30. | In the marine environment, nitrogen is often the limiting nutrient, so the nitrogen cycle in the ocean is of particular interest.
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