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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. [a] Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class ranking between phylum and order. [1]
Taxonomy is a practice and science concerned with classification or categorization. Typically, there are two parts to it: the development of an underlying scheme of classes (a taxonomy) and the allocation of things to the classes (classification).
Retailing equipment and supplies (4 C, 4 P) Rodeo equipment (8 P) Ropes (1 C, 18 P) S. Safety equipment (14 C, 125 P) Scientific equipment (9 C, 21 P) Sewing ...
nomen ambiguum (plural: nomina ambigua), (bot.) a name that has been used with more than one meaning; nomen confusum (plural: nomina confusa), (bact.) a name based on a mixed bacterial culture; nomen perplexum (plural: nomina perplexa), a name confusingly similar to another name or names
An economic theory that defines wealth by the amount of precious metals owned. [48] business cycle. Also called the economic cycle or trade cycle. The downward and upward movement of gross domestic product (GDP) around its long-term growth trend. [49] The length of a business cycle is the period of time containing a single boom and contraction ...
Economics focuses on the study of economic goods, or goods that are scarce; in other words, producing the good requires expending effort or resources. Economic goods contrast with free goods such as air, for which there is an unlimited supply.
Class (biology), a taxonomic rank; Class (knowledge representation), a collection of individuals or objects; Class (philosophy), an analytical concept used differently from such group phenomena as "types" or "kinds" Class (set theory), a collection of sets that can be unambiguously defined by a property that all its members share
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.