parent_taxon zizina
Binomial nomenclature ( also called binominal nomenclature or binary nomenclature ) is a formal system of naming species of living things by giving each a name composed of two parts , both of which use Latin grammatical forms , although they can be based on words from other languages . Such a name is called a binomial name ( which may be shortened to just " binomial "), a binomen or a scientific name ; more informally it is also called a Latin name . The first part of the name identifies the genus to which the species belongs ; the second part identifies the species within the genus . For example , humans belong to the genus " ___MASK17___ " and within this genus to the species " ___MASK17___ sapiens ". The " formal " introduction of this system of naming species is credited to Carl Linnaeus , effectively beginning with his work " Species Plantarum " in 1753 . But Gaspard Bauhin , in as early as 1623 , had introduced in his book " Pinax theatri botanici " ( English , " Illustrated exposition of plants ") many names of genera that were later adopted by Linnaeus . In biology , an organism is any contiguous living system , such as an ___MASK73___ , plant , fungus , archaeon , or bacterium . All known types of organisms are capable of some degree of response to stimuli , reproduction , growth and development and homeostasis . An organism consists of one or more cells ; when it has one cell it is known as a unicellular organism ; and when it has more than one it is known as a multicellular organism . Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms . Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs . Zizina is a genus of gossamer - winged butterflies in the subfamily ___MASK47___ . ___MASK57___ is the second - largest family of butterflies ( behind Nymphalidae , brush - footed butterflies ), with over 6 , 000 species worldwide , whose members are also called gossamer - winged butterflies . They constitute about 30 % of the known butterfly species . A genus ( 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 . ___MASK47___ , the blues , are a subfamily of gossamer - winged butterflies ( ___MASK57___ ). It was long used to assign taxa of unclear relationships , and its contents are in need of revision . Several genera might not even belong here .