| 31. | "Methanocaldococcus jannaschii " is a thermophilic methanogen, meaning it grows by making methane as a metabolic byproduct.
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| 32. | Research at the University of Arkansas presented in June 2015 suggested that some methanogens could survive on Mars's low pressure.
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| 33. | Methanogens lack peptidoglycan, a polymer that is found in the cell walls of the Bacteria but not in those of Archaea.
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| 34. | Some scientists have proposed that the presence of methane in the Martian atmosphere may be indicative of native methanogens on that planet.
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| 35. | Research at the University of Arkansas presented in June 2015 suggested that some methanogens could survive in Mars's low pressure.
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| 36. | Here, methanogens use the intermediate products of the preceding stages and convert them into methane, carbon dioxide, and water.
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| 37. | "' Methanomethylovorans hollandica "'is a species of methylotrophic methanogen able to grow on dimethyl sulfide and methanethiol.
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| 38. | This type of wall is found in some methanogens, such as " Methanobacterium " and " Methanothermus ".
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| 39. | Methane is produced by the archea, methanogens, described above within the rumen, and this methane is released to the atmosphere.
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| 40. | The results reported indicate that the perchlorates discovered by the Phoenix Lander would not rule out the possible presence of methanogens on Mars.
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