classification

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classification Organization of organisms into categories based on appearance, structure, genetic sequence or evolution. The categories, from the most inclusive to the most exclusive are kingdom, phylum, class, order, family, genus, species, and sometimes variety. For example, the domestic dog is classified as kingdom Animalia, phylum Chordata, class Mammalia, order Carnivora, family Canidae, genus Canis, species Canis familiaris.

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