Respuesta :

Answer:

Nitrogen-fixing bacteria, microorganisms capable of transforming atmospheric nitrogen into fixed nitrogen.

Explanation: I hope this helps! (。^▽^)

Decomposer bacteria – decomposes proteins and urea and turns them into ammonia.
Nitrifying bacteria – converts ammonia to nitrites then nitrates.
Nitrogen-fixing bacteria – turns atmospheric nitrogen into nitrogen compounds.
Denitrifying bacteria – turns nitrogen compounds back into nitrogen gas. No help to living organisms.

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