McqMate
| Q. |
The nitrogen in the ecosystem is circulated by - |
| A. | Earthworms |
| B. | Bacteria |
| C. | Fungi |
| D. | protozoa |
| Answer» B. Bacteria | |
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Explanation: Bacteria play a great role in nitrogen thation. Nitrogen fixing bacteria inhabit legume root nodules. Nitrogenase is the enzyme in nitrogen-fixing bacteria that catalyzes the conversion of atmospheric nitrogen into ammonia. |
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