Why are archaebacteria classified separately from other prokaryotes?
Archaebacteria are a type of prokaryote. The prokaryotes are split into two main groups: the archaebacteria and the eubacteria. The differences are mainly in the composition of the cell wall. Also, most extremophiles (organisms that can live in extreme environments, ie thermal vents) are archea. They are more capable of handling the extreme conditions than eubacteria because of these differences. Eubacteria and archaebacteria have all the things in common that makes them prokaryotes: the have no membrane bound organelles, and no defined nucleus. Hope this helps.
