classification
Examples of classification in the following topics:
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Structural Classification of Joints
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Functional Classification of Joints
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Classification of Sentences
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The Baltimore Virus Classification
- The Baltimore classification groups viruses into families depending on their type of genome.
- Virus classification is the process of naming viruses and placing them into a taxonomic system.
- Much like the classification systems used for cellular organisms, virus classification is the subject of ongoing debate and proposals.
- As such, they do not fit neatly into the established biological classification system in place for cellular organisms.
- List the characteristics of viruses that are useful for Baltimore classification
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The Taxonomic Scheme
- Bacterial taxonomy is the rank-based classification of bacteria.
- In the scientific classification established by Carl von Linné, each distinct species is assigned to a genus using a two-part binary name (for example, Homo sapiens).
- Despite there being little agreement on the major subgroups of the Bacteria, gram staining results were commonly used as a classification tool.
- Until the advent of molecular phylogeny the Kingdom Prokaryotae was divided into four divisions, a classification scheme still formally followed by Bergey's manual of systematic bacteriology.The various species differ amongst each other based on several characteristics determined by gram staining, which allowed their identification and classification.
- Outline the factors that play a role in the classification of bacterial taxonomy
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Virus Classification
- To understand the features shared among different groups of viruses, a classification scheme is necessary.
- Biologists have used several classification systems in the past, based on the morphology and genetics of the different viruses.
- However, these earlier classification methods grouped viruses based on which features of the virus they were using to classify them.
- The most commonly-used classification method today is called the Baltimore classification scheme which is based on how messenger RNA (mRNA) is generated in each particular type of virus.
- The most commonly-used system of virus classification was developed by Nobel Prize-winning biologist David Baltimore in the early 1970s.
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Race and Ethnicity
- Racial classifications are rooted in the idea of biological classification of humans according to morphological features such as skin color or facial characteristics.
- An individual is usually externally classified (meaning someone else makes the classification) into a racial group rather than the individual choosing where they belong as part of their identity.
- Some of the social traits often used for ethnic classification include:
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Classification of Microorganisms
- Biologic classification helps identify each form according to common properties (similarities) using a set of rules and an estimate as to how closely related it is to a common ancestor (evolutionary relationship) in a way to create an order.
- The science of classifying organisms is called taxonomy and the groups making up the classification hierarchy are called taxa.
- Classification of microorganisms has been largely aided by studies of fossils and recently by DNA sequencing.
- Methods of classifications are constantly changing.
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The Levels of Classification
- Taxanomic classification divides species in a hierarchical system beginning with a domain and ending with a single species.
- The taxonomic classification system (also called the Linnaean system after its inventor, Carl Linnaeus, a Swedish botanist, zoologist, and physician) uses a hierarchical model.
- At each sublevel in the taxonomic classification system, organisms become more similar.
- The taxonomic classification system uses a hierarchical model to organize living organisms into increasingly specific categories.
- Describe how taxonomic classification of organisms is accomplished and detail the levels of taxonomic classification from domain to species
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Evaluating Sources
- Libraries are organized according to standard systems of library classification.
- Classification systems can be divided into three types depending on how they are used:
- Examples include Dewey Decimal Classification, Universal Decimal Classification and Library of Congress Classification
- Specific classification schemes for particular subjects or types of materials.
- Examples include Iconclass, British Catalogue of Music Classification, and Dickinson classification, or the NLM Classification for medicine.