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Microbes: Keeping it Going

... Earth, only a prokaryotic community existed and the whole biosphere was created by bacteria. Any later event could only be a modification made to the system that had been crafted by those invisible things when they were given full reign All free-living organisms are fueled by redox reactions. The most primitive microbial community is the one of hydrogenotrophic microorganisms . The reducing agent they use is hydrogen, which is produced by water reacting with overheated rock, that is at quite high temperatures. Such organisms occur widely among the microflora living in rock pores at depths exceeding 3 km. Thus,...

Modified: 30.05.2004
organisms , evolution , microorganisms , bacteria , life
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