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On average, the ratio of carbon to nitrogen is much higher in terrestrial plants than in other major
An emission tester that uses nitrogen to pressurize the fuel system.
Nitrogen Oxides (NOX)
Pathways of nitrogen metabolism (purple) in the general pattern of intermediary metabolism
Protein Needs Are Determined by Nitrogen Balance in Your Body
Soybean plants in nitrogen-poor soil show how root nodules affect growth. Only the darker green plan