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In biology, a taxon (back-formation from taxonomy; pl.: taxa) is a group of one or more populations of an organism or organisms seen by taxonomists to form a unit. Although neither is required, a taxon is usually known by a particular name and given a particular ranking , especially if and when it is accepted or becomes established.
In biology, taxonomy (from Ancient Greek τάξις () 'arrangement' and -νομία () 'method') is the scientific study of naming, defining (circumscribing) and classifying groups of biological organisms based on shared characteristics.
Taxa at the rank of genus and above have a botanical name in one part (unitary name); those at the rank of species and above (but below genus) have a botanical name in two parts (binary name); all taxa below the rank of species have a botanical name in three parts (an infraspecific name). To indicate the rank of the infraspecific name, a ...
Taxonomy in biology encompasses the description, identification, nomenclature, and classification of organisms. Uses of taxonomy include: Alpha taxonomy, the description and basic classification of new species, subspecies, and other taxa Linnaean taxonomy, the original classification scheme of Carl Linnaeus
The scientific names of botanical taxa are regulated by the International Code of Nomenclature for algae, fungi, and plants (ICN). [1] As specified by the ICN, the name of an infraspecific taxon is a combination of the name of a species and an infraspecific epithet, [2] separated by a connecting term that denotes the rank of the taxon.
Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. [1] The name of an order is usually written with a capital letter. [2]
Insofar as a general definition of a class is available, it has historically been conceived as embracing taxa that combine a distinct grade of organization—i.e. a 'level of complexity', measured in terms of how differentiated their organ systems are into distinct regions or sub-organs—with a distinct type of construction, which is to say a ...
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.