The occurrence of nitrate on the early earth and its role in the evolution of the prokaryotes.
D000693:Anaerobiosis; D001272:Atmosphere; D001419:Bacteria / Q000378:metabolism*; D005075:Biological Evolution; D009566:Nitrates / Q000378:metabolism*; D000069497:Origin of Life; D010085:Oxidative Phosphorylation
D009566:Nitrates