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Human taxonomy is the classification of the human species within zoological taxonomy. The systematic genus , Homo , is designed to include both anatomically modern humans and extinct varieties of archaic humans .
In biology, taxonomic rank (which some authors prefer to call nomenclatural rank [1] because ranking is part of nomenclature rather than taxonomy proper, according to some definitions of these terms) is the relative or absolute level of a group of organisms (a taxon) in a hierarchy that reflects evolutionary relationships.
Plants with more than one significant human use may be listed in multiple categories. Plants are considered domesticated when their life cycle , behavior , or appearance has been significantly altered as a result of being under artificial selection by humans for multiple generations (see the main article on domestication for more information).
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. Kingdoms are divided into smaller groups called phyla (singular phylum).
It includes brief explanations of the various taxonomic ranks in the human lineage. The timeline reflects the mainstream views in modern taxonomy , based on the principle of phylogenetic nomenclature ; in cases of open questions with no clear consensus, the main competing possibilities are briefly outlined.
The following is a list of widely known trees and shrubs. ... Taxonomic families for the following trees and shrubs are listed in alphabetical order, likewise the ...
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The scientific work of deciding how to define species has been called microtaxonomy. [26] [27] [20] By extension, macrotaxonomy is the study of groups at the higher taxonomic ranks subgenus and above, [20] or simply in clades that include more than one taxon considered a species, expressed in terms of phylogenetic nomenclature. [28]