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As we go higher from species to kingdom in the taxonomic hierarchy, what happens to the number of common characters?

Answer and explanation

Correct answer: Common characters decrease

Correct answer: A. Taxonomic ranks are arranged from more specific groups, such as species, to broader groups, such as kingdom. Members of one species generally share many characters, whereas members of a kingdom can be extremely diverse and therefore share fewer specific characters. Thus, when moving upward from species through genus, family, order, class and phylum to kingdom, the number of common characters decreases. At the same time, the number of organisms included and their overall diversity increase. B reverses this relationship. C is wrong because the shared character set does not stay constant across increasingly broad groups. D is wrong because the general trend is not a repeated increase followed by decrease. Memory cue: lower rank means closer resemblance and more common characters; higher rank means wider diversity and fewer common characters.

Related tags

Taxonomic HierarchyCommon CharactersClassificationKingdomTaxonomyBinomial NomenclatureTaxonomy Binomial NomenclatureThe Living WorldBiology

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