Edexcel GCSE Biology · 1BI0
Specification 9.15 · Paper 2
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GCSE Biology · key term
The conversion of nitrogen gas from the air into nitrogen-containing compounds by nitrogen-fixing bacteria.
Used by Edexcel
Specification 9.15 · Paper 2
Distinguish nitrogen fixation from nitrification: fixation brings atmospheric nitrogen into the cycle; nitrification produces nitrates from ammonium compounds in soil.
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