In biology, a taxon (back-formation from taxonomy; plural taxa) is
a group of one or more populations of an organism or organisms seen by taxonomists
to form a unit.
What is an example of a taxon?
(1) Any group or rank in a biological classification into which related organisms are classified. (2) A taxonomic unit in the biological system of classification of organisms, for example: a
phylum, order, family, genus, or species
. Phylum Chordata is a taxon belonging to the Animal Kingdom.
What is a taxon name?
A taxon is
a group of organisms defined by particular reproductive, anatomical, or genetically determined similarities
. Each taxon is named. Names are almost always unique, but sometimes the same name will be used inadvertently for both plant and animal orders, or for two, very distantly related animal families.
What are the three types of taxon?
There are eight distinct taxonomic categories. These are:
Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species
. With each step down in classification, organisms are split into more and more specific groups.
Is Polypetalae a taxon?
Polypetalae was
a taxonomic grouping used in the identification of plants
, but it is now considered to be artificial group, one that does not reflect evolutionary history. The grouping was based on similar morphological plant characteristics.
What is the largest taxon?
Taxon is a unit of classification and represents a category or rank in the hierarchy of classification. The largest taxon is
the kingdom
, which contains animals belonging to different phylum.
Who gave the term taxon?
The term taxon was first used in 1926 by
Adolf Meyer-Abich
for animal groups, as a backformation from the word Taxonomy; the word Taxonomy had been coined a century before from the Greek components τάξις (taxis, meaning arrangement) and -νομία (-nomia meaning method).
What are the 7 taxa?
There are seven main taxonomic ranks:
kingdom, phylum or division, class, order, family, genus, species
. In addition, domain (proposed by Carl Woese) is now widely used as a fundamental rank, although it is not mentioned in any of the nomenclature codes, and is a synonym for dominion (lat.
Is kingdom a taxon?
In biology, kingdom is
a taxonomic rank
that is composed of smaller groups called phyla (or divisions, in plants). Historically, kingdom is the highest taxonomic rank, or the most general taxon used in classifying organisms.
What’s the scientific name for humans?
Homo sapiens
, (Latin: “wise man”) the species to which all modern human beings belong. Homo sapiens is one of several species grouped into the genus Homo, but it is the only one that is not extinct. See also human evolution.
What are 3 domains of life?
Even under this new network perspective, the three domains of cellular life —
Bacteria, Archaea, and Eukarya
— remain objectively distinct.
Which taxonomic rank is lowest?
The current taxonomic system now has eight levels in its hierarchy, from lowest to highest, they are:
species
, genus, family, order, class, phylum, kingdom, domain.
What is the six kingdoms of life?
In biology, a scheme of classifying organisms into six kingdoms: Proposed by Carl Woese et al:
Animalia, Plantae, Fungi, Protista, Archaea/Archaeabacteria, and Bacteria/Eubacteria
.
Which one of the following is NOT a taxon?
The division
is not a taxon but a category. Divison is a taxonomy rank in the biological classification which is used to differentiate in botany and zoology. In Mycology and Botany, division refers a rank which is equivalent to the phylum. These both terms are used commonly in the scientific literature.
What is Polypetalae and Gamopetalae?
Gamopetalae is
an artificial group used in the identification of plants
based on Bentham and Hooker’s classification system. Polypetalae refers to a botanical group of plants, while polypetalous refers to flowers of a distinct type.
Which fern is Woody?
The fronds of
tree ferns
also exhibit circinate vernation, meaning the young fronds emerge in coils that uncurl as they grow. Unlike flowering plants, tree ferns do not form new woody tissue in their trunk as they grow. Rather, the trunk is supported by a fibrous mass of roots that expands as the tree fern grows.
