What Are Multicelled Organisms?


Quick Answer

A multicelled, or multicellular, organism is any living being comprised of more than one cell. Typically, multicellular life differentiates cells into specialized tasks, which in larger organisms can form tissues and organs. This allows multicellular organisms to have cells that are more efficient at a specific function of life.

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Full Answer

This is in contrast to unicellular organisms, which do not form larger structures than a single cell. Unicellular organisms form subcellular structures to carry out the tasks necessary for life. Multicellular organisms can be either prokaryotic, lacking a cellular nucleus, or eukaryotic, possessing a membrane-bound nucleus. The majority of organisms are eukaryotes, including all animal life.

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