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Order (Latin: ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes.
Early taxonomy was based on arbitrary criteria, the so-called "artificial systems", including Linnaeus's system of sexual classification for plants (Linnaeus's 1735 classification of animals was entitled "Systema Naturae" ("the System of Nature"), implying that he, at least, believed that it was more than an "artificial system").
A previous zoologist Rumphius (1627–1702) had more or less approximated the Linnaean system and his material contributed to the later development of the binomial scientific classification by Linnaeus. [164] The Linnaean system classified nature within a nested hierarchy, starting with three kingdoms.
Linnaeus, in Species Plantarum (1753), [30] the starting point for modern botanical nomenclature, recognized 14 genera of algae, of which only four are currently considered among algae. [31] In Systema Naturae , Linnaeus described the genera Volvox and Corallina , and a species of Acetabularia (as Madrepora ), among the animals.
Alligators commonly live up to 50 years, but there have been examples of alligators living over 70. [14] One of the oldest recorded alligator lives was that of Saturn , an American alligator who was hatched in 1936 in Mississippi and spent nearly a decade in Germany before spending the majority of his life at the Moscow Zoo , where he died at ...
Euphorbia as a small tree: Euphorbia dendroides. Euphorbia is a large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae.. Euphorbias range from tiny annual plants to large and long-lived trees, [2] with perhaps the tallest being Euphorbia ampliphylla at 30 m (98 ft) or more.
The cardiovascular system of snakes is unique for the presence of a renal portal system in which the blood from the snake's tail passes through the kidneys before returning to the heart. [79] The circulatory system of a snake is basically like those of any other vertebrae. However, snakes do not regulate internally the temperature of their blood.
The word "tokay" is an onomatopoeia of the sound made by males of this species. [3]: 120 [4]: 253 The common and scientific names, as well as the family name Gekkonidae and the generic term "gecko" come from this species, too, from ge'kok in Javanese, [5] corresponding to tokek in Malay.