title: The evolutionary significance of the Archaebacteria.
mesh_terms: D001105:Archaea / Q000235:genetics; D001419:Bacteria / Q000235:genetics; D005075:Biological Evolution; D005057:Eukaryotic Cells; D005798:Genes, Bacterial; D011387:Prokaryotic Cells; D012329:RNA, Bacterial / Q000235:genetics; D012335:RNA, Ribosomal / Q000235:genetics; D013559:Symbiosis
chemical_list: D012329:RNA, Bacterial; D012335:RNA, Ribosomal