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10. How is a key helpful in the identification and classification of an organism?

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A taxonomic key refers to an artificial analytical device used for identifying organisms. Usually, in a key, two contrasting characters are used. The one present in the organism is chosen while other is rejected. Each statement of a key is called a lead. Separate taxonomic keys are used for each taxonomic category like species, genus, family, etc. Keys are generally analytical in nature.

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