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autotrophic |
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autotrophic /au·to·tro·phic/ (aw″to-tro´fik) self-nourishing; able to build organic constituents from carbon dioxide and inorganic salts. autotrophic capable of synthesizing necessary nutrients if water, carbon dioxide, inorganic salts and a source of energy are available. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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There are at present two schools: one supporting a heterotrophic origin of life and the other supporting an autotrophic origin of life. 1998) and Hoffman and Schrag (2000) propose a runaway albedo mechanism for initiating Snowball glaciation, where extreme cold and thick sea ice shut down all hydrological activity and chemical weathering such that marine autotrophic activity and organic carbon burial would cease. These compounds, which form an essential link in the chemical chain reactions of life, are created by autotrophic organisms--plants--that gather carbon and energy from the environment, carbon from carbon dioxide, and energy from sunlight. |
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