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BIOLOGY
Asked by Emma

GCSE Biology- What is the difference between nitrifying bacteria, denitrifying bacteria, nitrifying-fixing bacteria and decomposing the bacteria, in regards to the nitrogen cycle?

Nitrifying bacteria: converters of soil ammonia to nitrates, compounds usable by plants. Denitrifying bacteria in the soil break down nitrates and return nitrogen to the air. Nitrogen fixing bacteria present in the soil or in plant roots that change nitrogen gases from the atmosphere into solid nitrogen compounds that plants can use in the soil. Decomposers convert the nitrogen found in other organisms into ammonia and return it to the soil.

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Tony Kaffer
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