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7 levels of classification |
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Species, genus, family, order, class, phylum, kingdom, domain,
life |
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a group of organisms capable of interbreeding and producing fertile offspring, and separated from other such groups with which interbreeding does not (normally) happen.
Other definitions may focus on similarity of DNA or morphology. Some species are further subdivided into subspecies, and here also there is no close agreement on the criteria to be used. |
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In biology, binomial nomenclature is the formal system of naming species. The system is called binominal nomenclature (particularly in zoological circles), binary nomenclature (particularly in botanical circles), or the binomial classification system. The essence of it is that each species name is in (modern scientific) Latin and has two parts, so that it is popularly known as the "Latin name" of the species, although this terminology is frowned upon by biologists and philologists, who prefer the phrase scientific name. |
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The term "common name" is widely used in relation to organisms, but also applies in other areas such as chemistry. When applied to organisms a common name is often compared and contrasted with its scientific name. A common name may be applied, as a proper noun, to both a single species of organism (e.g. red admiral ) or in a more general sense as a common noun (e.g. butterfly). This is essentially the same way we communicate about many other objects in everyday speech |
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The bacteria [image] [bækˈtɪərɪə] (help·info) (singular: bacterium)[α] are a large group of unicellular microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals. Bacteria are ubiquitous in every habitat on Earth, growing in soil, acidic hot springs, radioactive waste,[2] water, and deep in the Earth's crust, as well as in organic matter and the live bodies of plants and animals |
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A growth medium or culture medium is a liquid or gel designed to support the growth of microorganisms or cells [1], or small plants like the moss Physcomitrella patens [2].
There are different types of media for growing different types of cells.[3]There are two major types of growth media: those used for cell culture (plants and animals), and microbiological culture, which are used for growing microorganisms, such as bacteria or yeast. The most common growth media for microorganisms are nutrient broths and agar plates; specialized media are sometimes required for microorganism and cell culture growth.[ |
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