Scientific classification in botany is a method by which botanists group and categorize organisms by biological type, such as genus or species.

The classification, taxonomy, and nomenclature of botanical organisms is administered by the International Code of Nomenclature for algae, fungi, and plants ( ICN ).

It is concerned with the characteristics, classification, and behaviors of organisms, how species come into existence, and the interactions they have with each other and with the environment.

A single tree is of little consequence to the classification of a forest ecosystem, but critically relevant to organisms living in and on it.

The term does not imply any specific relationship or classification of the organisms that possess flagellae.

A variety of classification schemes have been proposed that order genetically modified organisms based on the nature of introduced genotypical changes rather than the process of genetic engineering.

Jainism has extensive classification of various living organisms including micro-organisms that live in mud, air and water.

# a term for rank-based classification of organisms, in general.

Taxonomy, the classification, identification, and naming of organisms, is usually richly informed by phylogenetics, but remains methodologically and logically distinct.

The degree to which taxonomy depends on phylogenies differs between schools of taxonomy: numerical taxonomy ignored phylogeny altogether, trying to represent the similarity between organisms instead ; phylogenetic systematics tries to reproduce phylogeny in its classification without loss of information ; evolutionary taxonomy tries to find a compromise between them in order to represent stages of evolution.

However, taxonomy, and in particular alpha taxonomy, is more specifically the identification, description, and naming ( i. e. nomenclature ) of organisms, while " classification " is focused on placing organisms within hierarchical groups that show their relationships to other organisms.

# The science of classification, in biology the arrangement of organisms into a classification.

In biology, a genus ( plural: genera ) is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia.

Biology is concerned with the characteristics, classification and behaviors of organisms, as well as how species were formed and their interactions with each other and the environment.

Still, a significant amount of the sequence of the genomes of eukaryotic organisms currently appears to fall under no existing classification other than " junk ".

The kingdom-level classification of life is still widely employed as a useful way of grouping organisms, notwithstanding some problems with this approach:

* Cladistics, the classification of organisms by their order of branching in an evolutionary tree

Many organisms ( of which humans are prime examples ) eat from multiple levels of the food chain and thus make this classification problematic.

Sometimes terms which refer to branches of soil science, such as pedology ( formation, chemistry, morphology and classification of soil ) and edaphology ( influence of soil on organisms, especially plants ), are used as if synonymous with soil science.

Though we today may view Linnaeus's early classification of the soft-bodied organisms as rather primitive, it was revolutionary in its day.

# a taxonomic rank used in the classification of organisms.

Similar to the classification systems used for cellular organisms, virus classification is the subject of ongoing debate and proposals.

Applying the techniques developed at Harvard for generating a paradigm from a representative form and its classification, we can add all forms of a word to the dictionary at once.

In contrast to " rhizopods ", where most of their morphologies can be mapped to modern classification systems, " actinopods " appear to be extensively polyphyletic.

For tonal languages, further classification can be based on their treatment of tone, though names do not yet exist to distinguish the various types.

The beginnings of modern-style classification systems can be traced to the 1500s – 1600s when several attempts were made to scientifically classify plants.

Modern climate classification methods can be broadly divided into genetic methods, which focus on the causes of climate, and empiric methods, which focus on the effects of climate.

However, the classification as a metro or rapid rail can be difficult as both may typically cover a metropolitan area exclusively, run on separate tracks in the centre, and often feature purpose-built rolling stock.

The classification theorem has applications in many branches of mathematics, as questions about the structure of finite groups ( and their action on other mathematical objects ) can sometimes be reduced to questions about finite simple groups.

Thanks to the classification theorem, such questions can sometimes be answered by checking each family of simple groups and each sporadic group.

The classification of speech varieties as dialects or languages and their relationship to other varieties of speech can thus be controversial and the verdicts inconsistent.

DDC notations can be much longer compared to other classification systems.

The conclusion of Grimm is that the classification " elf " can be considered to " shrink and stretch by turns ".

In 1989, the ILAE proposed a classification scheme for epilepsies and epileptic syndromes .< ref name =" ILEA1989 "> This can be broadly described as a two-axis scheme having the cause on one axis and the extent of localization within the brain on the other.

There is no classification point system dictating who can play inline sledge hockey, unlike the situation with other team sports such as wheelchair basketball and wheelchair rugby.

The SP and ID numbers were used parenthetically after each boat's or ship's name to identify it ; although this system pre-dated the modern hull classification system and its numbers were not referred to at the time as " hull codes " or " hull numbers ," it was used in a similar manner to today's system and can be considered its precursor.

In order to classify a business as a service, one can use classification systems such as the United Nations's International Standard Industrial Classification standard, the United States ' Standard Industrial Classification ( SIC ) code system and its new replacement, the North American Industrial Classification System ( NAICS ), the Statistical Classification of Economic Activities in the European Community ( NACE ) in the EU and similar systems elsewhere.

There are well known problems such as " spreading activation " ( this is a problem in navigating a network of nodes ), " subsumption " ( this is concerned with selective inheritance ; e. g. an ATV can be thought of as a specialization of a car but it inherits only particular characteristics ) and " classification.

This view places importance on the study of linguistic typology, classification of languages according to structural features, as it can be shown that processes of grammaticalization tend to follow trajectories that are partly dependent on typology.

It is important to note that unlike subject heading or thesauri where multiple terms can be assigned to the same work, in library classification systems, each work can only be placed in one class.

However in general, classification systems can be divided into three types depending on how they are used:

As a result of differences in notation, history, use of enumeration, hierarchy, and facets, classification systems can differ in the following ways:

According to these new rules, " mineral species can be grouped in a number of different ways, on the basis of chemistry, crystal structure, occurrence, association, genetic history, or resource, for example, depending on the purpose to be served by the classification.

The levels according to Tegmark's classification are arranged such that subsequent levels can be understood to encompass and expand upon previous levels, and they are briefly described below.

The classification of pole weapons can be difficult, and European weapon classifications in particular can be confusing.