Книга: Prokaryote: Organism, Cell Nucleus, Cell Membrane, Organelle, Myxobacteria, Multicellular Organism, Biological Life Cycle, Bacteria, Archaea, Domain (biology), Habitat

High Quality Content by WIKIPEDIA articles! The prokaryotes are a group of organisms that lack a cell nucleus (= karyon), or any other membrane-bound organelles. They differ from the eukaryotes, which have a cell nucleus. Most are unicellular, but a few prokaryotes such as myxobacteria have multicellular stages in their life cycles. The word prokaryote comes from the Greek ???- (pro-) 'before' + ?????? (karyon) 'nut or kernel', referring to the cell nucleus, + suffix -???? (-?t?s) (pl. -???? (-?tes)). It is also spelled 'procaryote'.