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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]
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
This list compiles figures for all North American cities with a population within city limits exceeding 500,000 that year. These figures do not reflect the population of the urban agglomeration or metropolitan area , which typically does not coincide with the administrative boundaries of the city.
Quizlet was founded in October 2005 by Andrew Sutherland, who at the time was a 15-year old student, [2] and released to the public in January 2007. [3] Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [4]
The following table sorts cities according to the population within their administrative boundaries at the last available date. The population figures refer in the most cases to the respective municipality within its political boundaries, excluding politically independent suburbs.
This six-kingdom model is commonly used in recent US high school biology textbooks, but has received criticism for compromising the current scientific consensus. [13] But the division of prokaryotes into two kingdoms remains in use with the recent seven kingdoms scheme of Thomas Cavalier-Smith, although it primarily differs in that Protista is ...
The Cavaliers star sank a game-winner at mid-range with 0.3 seconds left, breaking the hearts of the struggling Bucks and improving his team's record to 7-0. The result pushes the Cavaliers to one ...
The city population as of April 1, 2020, as enumerated by the 2020 United States census [1] The city percent population change from April 1, 2020, to July 1, 2023; The city land area as of January 1, 2020 [2] The city population density as of April 1, 2020 (residents per unit of land area) [2] The city latitude and longitude coordinates [2]