Context: 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 "Homo" and within this genus to the species "Homo 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., Gekkonidae is the largest family of geckos, containing over 950 described species in 51 genera. Many "typical" geckos are members of Gekkonidae, including house geckos ("Hemidactylus"), tokay geckos ("Gekko gecko"), and day geckos ("Phelsuma"). Gekkonid geckos occur globally and are particularly species-rich in tropical areas., Carinatogecko is a genus of Gekkonidae ( gecko ) family . It contains three species . Iranian Gecko , Carinatogecko aspratilis Iraqi Gecko , Carinatogecko heteropholis Carinatogecko stevenandersoni, In biology, an organism is any contiguous living system, such as an animal, 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., Gekko is a genus of colorful and diverse Southeast Asian geckos commonly known as true geckos or calling geckos. Although species such as "Gekko gecko" (the tokay gecko) are very widespread and common, some species in the same genus have a very small range and are considered rare or endangered., Geckos are lizards belonging to the infraorder Gekkota, found in warm climates throughout the world. They range from 1.6 to 60 cm (0.64 to 24 inches). Most geckos cannot blink, but they often lick their eyes to keep them clean and moist. They have a fixed lens within each iris that enlarges in darkness to let in more light., The tokay gecko ("Gekko gecko") is a nocturnal arboreal gecko in the genus "Gekko", the true geckos. It is native to Asia and some Pacific Islands., 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., Hemidactylus (the house geckos) is a genus of the family of common geckos, Gekkonidae. It has about 90 described species, newfound ones being described every few years. These geckos are found in all the tropical regions of the world, extending into the subtropical parts of Africa and Europe. They excel in colonizing oceanic islands by rafting on flotsam, and are for example found across most of Polynesia. In some archipelagoes, cryptic species complexes are found. Geckos like to live in and out of houses. They are introduced to Australia., Phelsuma is a large genus of mostly small lizards in the family Gekkonidae. Species in the genus "Phelsuma" are commonly referred to as day geckos., Subject: carinatogecko, Relation: parent_taxon, Options: (A) animal (B) geckos (C) gekko (D) hemidactylus (E) homo (F) lens (G) phelsuma (H) plant
Output: geckos