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Domains. Monera / bacteria. Archea. Archaea is derived from the Greek word archaios , meaning “ancient” or “primitive,” and indeed some archaea exhibit a group of single-celled organisms cells lack a defined nucleus )
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Archea • Archaea is derived from the Greek word archaios, meaning “ancient” or “primitive,” and indeed some archaea exhibit • a group of single-celled organisms • cells lack a defined nucleus) • Found in extreme environments hot springs, human gut, cold environments
Eukarya • Membrane bound nucleus • Membrane bound organelles (small organ like structures) • Organisms can be single celled or multicellular • Can be autotrophs (make their own food) like algae and plants • Can be heterotroph (have to consume food) animals and fungi