-Bacteria -Archaea are the two classes that prokaryotes can be divided into from an evolutionary perspective.
Bacteria (formerly Eubacteria) and Archaea (formerly Archaebacteria). Organisms with nuclei are placed in a 1/3 domain, Eukaryota.
Prokaryotes are organisms whose cells lack a nucleus and other organelles.
Prokaryotes are divided into two awesome groups: the micro organism and the archaea, which scientists accept as true with have special evolutionary lineages.
Most prokaryotes are small, single-celled organisms that have a particularly simple structure.
Learn more about prokaryotes here:
