In the light of recent classification of living organisms into three domains of life (bacteria, archaea, and eukarya), which one of the following statements is true about archaea?

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TestHub · Accepted Answer

A domain of prokaryotic organisms containing the archaebacteria includes the methanogens which produce methane, the thermoacidophilic bacteria which live in an extremely hot and acidic environment and the halophilic bacteria which can only function at high salt concentrations and are abundant in the oceans.

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