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The Planet's Long Youth

... reactors. Oceanic microbial organisms that live mostly within 200 m below the water surface and near the bottom make up at least one third of the total biomass (0.15•10 18 g of total 0.5•10 18 g organic carbon) (Zavarzin, 2003; Vinogradov, 2004). The biomass of land bacteria is comparable with that of plants. Yet most of organic carbon, estimated in terms of the global budget of oxygen, carbon, and other elements in related biogeochemical cycles, occurs in kerogen rather than in living organisms. Kerogen is fossil ...

Modified: 30.05.2005
Zavarzin , bacteria , RNA , Earth , biomass , eukaryotes , evolution , evolution of life , genes
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