Why is nitrogen need for living things?, To make protein, For respiration, For energy, To breathe, Which bacteria take Nitrogen and turn it into nitrates? :), Nitrogen fixing bacteria, Denitirfying bacteria, Nitrifying bacteria, Nitrate making bacteria, How do animals get the nitrogen they need?, By breathing it in, It is already in their body, They don't need nitrogen, By eating plants, Where do nitrogen fixing bacteria live?, In leaves, In root nodules, In decaying organisms, In water logged soil.

Nitrogen cycle

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