Different domains can have rRNA sequences which can be the basis of the difference. A prokaryotic that contains unique rRNA and can survive in extreme environments. Its cell walls do not contain peptidoglycan membranes and is made of branched hydrocarbon chains, all these characteristics describe Archaea, i.e., option A.
What are archaea?
Archaea could live in extreme environments, such as hydrothermal vents and terrestrial hot springs.
They were also found in a wide range of highly saline, acidic, and anaerobic environments. Due to this, these were defined as the limit of life on Earth.
They can have characteristics like prokaryotic that contains unique rRNA and can survive in extreme environments.
Its cell walls do not contain peptidoglycan membranes and is made of branched hydrocarbon chains.
Thus, the correct option is A.
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