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  2. Kingdom (biology) - Wikipedia

    en.wikipedia.org/wiki/Kingdom_(biology)

    The hierarchy of biological classification's eight major taxonomic ranks.A domain contains one or more kingdoms. Intermediate minor rankings are not shown. In biology, a kingdom is the second highest taxonomic rank, just below domain.

  3. Taxonomic rank - Wikipedia

    en.wikipedia.org/wiki/Taxonomic_rank

    The major ranks: domain, kingdom, phylum, class, order, family, genus, and species, applied to the red fox, Vulpes vulpes. The hierarchy of biological classification's eight major taxonomic ranks. Intermediate minor rankings are not shown.

  4. Taxonomy (biology) - Wikipedia

    en.wikipedia.org/wiki/Taxonomy_(biology)

    The science of classification, in biology the arrangement of organisms into a classification [4] "The science of classification as applied to living organisms, including the study of means of formation of species, etc." [5] "The analysis of an organism's characteristics for the purpose of classification" [6]

  5. Cavalier-Smith's system of classification - Wikipedia

    en.wikipedia.org/wiki/Cavalier-Smith's_system_of...

    As with classifications of others, such as Carl Linnaeus, Ernst Haeckel, Robert Whittaker, and Carl Woese, Cavalier-Smith's classification attempts to incorporate the latest developments in taxonomy., [3] [4] Cavalier-Smith used his classifications to convey his opinions about the evolutionary relationships among various organisms, principally ...

  6. Domain (biology) - Wikipedia

    en.wikipedia.org/wiki/Domain_(biology)

    A speculatively rooted tree for RNA genes, showing major branches Bacteria, Archaea, and Eukaryota The three-domain tree and the eocyte hypothesis (two-domain tree), 2008. [7] Phylogenetic tree showing the relationship between the eukaryotes and other forms of life, 2006. [8] Eukaryotes are colored red, archaea green, and bacteria blue.

  7. Human taxonomy - Wikipedia

    en.wikipedia.org/wiki/Human_taxonomy

    Human taxonomy is the classification of the human species (systematic name Homo sapiens, Latin: "wise man") within zoological taxonomy. The systematic genus, Homo, is designed to include both anatomically modern humans and extinct varieties of archaic humans.

  8. Class (biology) - Wikipedia

    en.wikipedia.org/wiki/Class_(biology)

    The hierarchy of biological classification's eight major taxonomic ranks. A phylum contains one or more classes. Intermediate minor rankings are not shown. In biological classification, class (Latin: classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. It is a group of related taxonomic orders.

  9. Phylum - Wikipedia

    en.wikipedia.org/wiki/Phylum

    The hierarchy of biological classification's eight major taxonomic ranks.A kingdom contains one or more phyla. Intermediate minor rankings are not shown. In biology, a phylum (/ ˈ f aɪ l əm /; pl.: phyla) is a level of classification or taxonomic rank below kingdom and above class.