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Subfamily
In biological classification , a SUBFAMILY ( Latin
Latin
: subfamilia, plural subfamiliae) is an auxiliary (intermediate) taxonomic rank , next below family but more inclusive than genus . Standard nomenclature rules end subfamily botanical names with "-oideae", and zoological names with "-inae". SEE ALSO * International Code of Nomenclature for algae, fungi, and plants * International Code of Zoological Nomenclature * Rank (botany) * Rank (zoology) SOURCES * ^ McNeill, J.; Barrie, F.R.; Buck, W.R.; Demoulin, V.; Greuter, W.; Hawksworth, D.L.; Herendeen, P.S.; Knapp, S.; Marhold, K.; Prado, J.; Prud'homme Van Reine, W.F.; Smith, G.F.; Wiersema, J.H.; Turland, N.J. (2012). International Code of Nomenclature for algae, fungi, and plants (Melbourne Code) adopted by the Eighteenth International Botanical Congress Melbourne, Australia, July 2011. Regnum Vegetabile 154. A.R.G. Gantner Verlag KG
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Protein Subfamily
PROTEIN SUBFAMILY is a level of protein classification, based on their close evolutionary relationship . It is typically determined by similarities in the members' 3D structures and sequences . It is below the larger levels of protein superfamily and protein family . For example, in the SCOP classification system, members of a subfamily share the same interaction interfaces and interaction partners
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Life
Life on Earth: * Non-cellular life * Viruses * Viroids * Cellular life * Domain Bacteria * Domain Archaea * Domain Eukarya *
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Domain (biology)
Eukaryota (represented by the Australian green tree frog , left), Bacteria
Bacteria
(represented by Staphylococcus aureus , middle) and Archaea (represented by Sulfolobus , right). The hierarchy of biological classification 's eight major taxonomic ranks . Life
Life
is divided into domains, which are subdivided into further groups. Intermediate minor rankings are not shown. In biological taxonomy , a DOMAIN ( Latin
Latin
: regio ), also SUPERKINGDOM or EMPIRE, is the highest taxonomic rank of organisms in the three-domain system of taxonomy designed by Carl Woese
Carl Woese
, an American microbiologist and biophysicist . According to the Woese system, introduced in 1990, the tree of life consists of three domains: Archaea , Bacteria
Bacteria
, and Eukarya
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Kingdom (biology)
In biology , KINGDOM ( Latin
Latin
: REGNUM, plural REGNA) is the second highest taxonomic rank , just below domain . Kingdoms are divided into smaller groups called phyla . Traditionally, some textbooks from the United States
United States
used a system of six kingdoms ( Animalia , Plantae , Fungi , Protista , Archaea / Archaeabacteria , and Bacteria
Bacteria
/Eubacteria ) while textbooks in Great Britain, India, Australia, Latin
Latin
America and other countries used five kingdoms (Animalia, Plantae, Fungi, Protista and Monera
Monera
). Some recent classifications based on modern cladistics have explicitly abandoned the term "kingdom", noting that the traditional kingdoms are not monophyletic , i.e., do not consist of all the descendants of a common ancestor
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Phylum
In biology, a PHYLUM (/ˈfaɪləm/ ; plural : PHYLA) is a level of classification or taxonomic rank below Kingdom and above Class . Traditionally, in botany the term division has been used instead of phylum, although the International Code of Nomenclature for algae, fungi, and plants accepts the terms as equivalent. Depending on definitions, the animal kingdom Animalia or Metazoa contains approximately 35 phyla, the plant kingdom Plantae contains about 12, and the fungus kingdom Fungi
Fungi
contains about 7 phyla. Current research in phylogenetics is uncovering the relationships between phyla, which are contained in larger clades , like Ecdysozoa and Embryophyta
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Class (biology)
In biological classification , CLASS (Latin : classis) is: * a taxonomic rank . Other well-known ranks in descending order of size are life , domain , kingdom , phylum , order , family , genus , and species , with class fitting between phylum and order. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the prefix sub-: subclass (Latin: subclassis). * a taxonomic unit, a taxon , in that rank. In that case the plural is classes (Latin classes) Example: Dogs are in the class Mammalia . The composition of each class is determined by a taxonomist . Often there is no exact agreement, with different taxonomists taking different positions. There are no hard rules that a taxonomist needs to follow in describing a class, but for well-known animals there is likely to be consensus. In botany, classes are now rarely discussed
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Order (biology)
In biological classification , the ORDER (Latin : ordo) is * a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes . Other well-known ranks are life , domain , kingdom , phylum , class , family , genus , and species , with order fitting in between class and family. An immediately higher rank, SUPERORDER, may be added directly above order, while SUBORDER would be a lower rank. * a taxonomic unit, a taxon , in that rank. In that case the plural is orders (Latin ordines). Example: All owls belong to the order Strigiformes. What does and does not belong to each order is determined by a taxonomist , as is whether a particular order should be recognized at all. 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
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Family (biology)
In biological classification , FAMILY (Latin : familia, plural familiae) is one of the eight major taxonomic ranks ; it is classified between order and genus . A family may be divided into subfamilies , which are intermediate ranks above the rank of genus . In vernacular usage , a family may be named after one of its common members; for example, walnuts and hickory trees belong to the family Juglandaceae , commonly known as the walnut family. What does or does not belong to a family—or whether a described family should be recognized at all—are proposed and determined by practicing taxonomists. There are no hard rules for describing or recognizing a family, or any taxa. Taxonomists often take different positions about descriptions of taxa, and there may be no broad consensus across the scientific community for some time
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Genus
A GENUS (/ˈdʒiːnəs/ , pl. GENERA) is a taxonomic rank used in the biological classification of living and fossil organisms in biology . In the hierarchy of biological classification, genus comes above species and below family . In binomial nomenclature , the genus name forms the first part of the binomial species name for each species within the genus. E.g. _ Felis catus _ and _ Felis silvestris _ are two species within the genus _ Felis _. _Felis_ is a genus within the family Felidae . The composition of a genus is determined by a taxonomist . The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: * monophyly – all descendants of an ancestral taxon are grouped together (i.e
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Species
In biology , a SPECIES (abbreviated SP., with the plural form SPECIES abbreviated SPP.) is the basic unit of biological classification and a taxonomic rank . A species is often defined as the largest group of organisms in which two individuals can produce fertile offspring , typically by sexual reproduction . While this definition is often adequate, looked at more closely it is problematic . For example, with hybridisation , in a species complex of hundreds of similar microspecies , or in a ring species , the boundaries between closely related species become unclear. Other ways of defining species include similarity of DNA , morphology , or ecological niche . All species are given a two-part name , a "binomial". The first part of a binomial is the genus to which the species belongs. The second part is called the specific name or the specific epithet (in botanical nomenclature , also sometimes in zoological nomenclature )
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Biological Classification
TAXONOMY (from Ancient Greek τάξις _(taxis )_, meaning 'arrangement', and -νομία _(-nomia)_, meaning 'method ') is the science of defining and naming groups of biological organisms on the basis of shared characteristics. Organisms are grouped together into taxa (singular: taxon) and these groups are given a taxonomic rank ; groups of a given rank can be aggregated to form a super group of higher rank, thus creating a taxonomic hierarchy. The Swedish botanist Carl Linnaeus is regarded as the father of taxonomy, as he developed a system known as Linnaean taxonomy for categorization of organisms and binomial nomenclature for naming organisms. With the advent of such fields of study as phylogenetics , cladistics , and systematics , the Linnaean system has progressed to a system of modern biological classification based on the evolutionary relationships between organisms, both living and extinct
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Taxonomic Rank
In biological classification , TAXONOMIC RANK is the relative level of a group of organisms (a taxon ) in a taxonomic hierarchy . Examples of taxonomic ranks are species , genus , family , order , class , phylum , kingdom , domain , etc. A given rank subsumes under it less general categories, that is, more specific descriptions of life forms. Above it, each rank is classified within more general categories of organisms and groups of organisms related to each other through inheritance of traits or features from common ancestors. The rank of any species and the description of its genus is basic; which means that to identify a particular organism, it is usually not necessary to specify ranks other than these first two. Consider a particular species, the red fox , Vulpes
Vulpes
vulpes: its next rank, the genus Vulpes
Vulpes
, comprises all the 'true foxes'
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Latin
LATIN (Latin: _lingua latīna_, IPA: ) is a classical language belonging to the Italic branch of the Indo-European languages . The Latin alphabet
Latin alphabet
is derived from the Etruscan and Greek alphabets , and ultimately from the Phoenician alphabet . Latin
Latin
was originally spoken in Latium , in the Italian Peninsula . Through the power of the Roman Republic , it became the dominant language, initially in Italy and subsequently throughout the Roman Empire . Vulgar Latin developed into the Romance languages , such as Italian , Portuguese , Spanish , French , and Romanian . Latin
Latin
and French have contributed many words to the English language . Latin
Latin
and Ancient Greek
Ancient Greek
roots are used in theology , biology , and medicine
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International Code Of Nomenclature For Algae, Fungi, And Plants
INTERNATIONAL mostly means something (a company , language , or organization ) involving more than a single country . The term international as a word means involvement of, interaction between or encompassing more than one nation, or generally beyond national boundaries. For example, international law , which is applied by more than one country and usually everywhere on Earth
Earth
, and international language which is a language spoken by residents of more than one country. CONTENTS * 1 Origin of the word * 2 Meaning in particular fields * 3 See also * 4 References * 5 External links * 6 Sources ORIGIN OF THE WORDThe term international was coined by the utilitarian philosopher Jeremy Bentham in his Introduction to Principles of Morals and Legislation , which was printed for publication in 1780 and published in 1789
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International Code Of Zoological Nomenclature
The INTERNATIONAL CODE OF ZOOLOGICAL NOMENCLATURE (ICZN) is a widely accepted convention in zoology that rules the formal scientific naming of organisms treated as animals . It is also informally known as the ICZN CODE, for its publisher, the International Commission on Zoological Nomenclature (which shares the acronym "ICZN"). The rules principally regulate: * How names are correctly established in the frame of binominal nomenclature * Which name must be used in case of name conflicts * How scientific literature must cite namesZoological nomenclature is independent of other systems of nomenclature, for example botanical nomenclature . This implies that animals can have the same generic names as plants. The rules and recommendations have one fundamental aim: to provide the maximum universality and continuity in the naming of all animals, except where taxonomic judgment dictates otherwise
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