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Created page with "== Introduction == Prokaryotes are a group of organisms that lack a cell nucleus (nucleus), or any other membrane-bound organelles. They are among the earliest forms of life on Earth, and still make up a significant portion of the planet's biomass and total genetic diversity. == Classification == Prokaryotes are divided into two domains: Bacteria and Archaea. These two groups were once classified together as a single kingdom, but are now recogni..."
