Search results
Results from the WOW.Com Content Network
This is usually used to describe organisms without a certain characteristic, as well as organisms in which that characteristic may not be immediately obvious. Examples: Anurognathus ("tailless jaw"); Apus ("footless"); Apteryx ("wingless"); Pteranodon ("wings without teeth"); Anura ("tailless")
In biology, taxonomy (from Ancient Greek τάξις 'arrangement' and -νομία 'method') is the scientific study of naming, defining (circumscribing) and classifying groups of biological organisms based on shared characteristics. Organisms are grouped into taxa (singular: taxon), and these groups are given a taxonomic rank; groups of a given ...
Gray also supplied Hominini as the name of the tribe including both chimpanzees (genus Pan) and humans (genus Homo). The discovery of the first extinct archaic human species from the fossil record dates to the mid 19th century: Homo neanderthalensis, classified in 1864. Since then, a number of other archaic species have been named, but there is ...
The basic ranks are species and genus. When an organism is given a species name it is assigned to a genus, and the genus name is part of the species name. The species name is also called a binomial, that is, a two-term name. For example, the zoological name for the human species is Homo sapiens. This is usually italicized in print or underlined ...
The list of organisms by chromosome count describes ploidy or numbers of chromosomes in the cells of various plants, animals, protists, and other living organisms.This number, along with the visual appearance of the chromosome, is known as the karyotype, [1] [2] [3] and can be found by looking at the chromosomes through a microscope.
Halophiles (organisms that thrive in highly salty environments) and hyperthermophiles (organisms that thrive in extremely hot environments) are examples of Archaea. [1] Archaea are relatively small. They range from 0.1 μm to 15 μm diameter and up to 200 μm long, about the size of bacteria and the mitochondria found in eukaryotic cells.
In addition to the generally accepted taxonomic name Homo sapiens (Latin: 'wise man', Linnaeus 1758), other Latin-based names for the human species have been created to refer to various aspects of the human character. The common name of the human species in English is historically man (from Germanic mann), often replaced by the Latinate human ...
Edward Hitchcock's fold-out paleontological chart in his 1840 Elementary Geology. Although tree-like diagrams have long been used to organise knowledge, and although branching diagrams known as claves ("keys") were omnipresent in eighteenth-century natural history, it appears that the earliest tree diagram of natural order was the 1801 "Arbre botanique" (Botanical Tree) of the French ...