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|Noun||1.||archeobacteria - considered ancient life forms that evolved separately from bacteria and blue-green algae|
moneran, moneron - organisms that typically reproduce by asexual budding or fission and whose nutritional mode is absorption or photosynthesis or chemosynthesis
division Archaebacteria - in some classifications considered a kingdom
methanogen - archaebacteria found in anaerobic environments such as animal intestinal tracts or sediments or sewage and capable of producing methane; a source of natural gas
thermoacidophile - archaebacteria that thrive in strongly acidic environments at high temperatures
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