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  2. Glossary of biology - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_biology

    This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...

  3. Class (biology) - Wikipedia

    en.wikipedia.org/wiki/Class_(biology)

    In biological classification, class (Latin: classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank. It is a group of related taxonomic orders. [a] Other well-known ranks in descending order of size are life, domain, kingdom, phylum, order, family, genus, and species, with class ranking between phylum and order. [1]

  4. Taxonomic rank - Wikipedia

    en.wikipedia.org/wiki/Taxonomic_rank

    In biology, taxonomic rank (which some authors prefer to call nomenclatural rank [1] because ranking is part of nomenclature rather than taxonomy proper, according to some definitions of these terms) is the relative or absolute level of a group of organisms (a taxon) in a hierarchy that reflects evolutionary relationships.

  5. List of Latin and Greek words commonly used in systematic ...

    en.wikipedia.org/wiki/List_of_Latin_and_Greek...

    It is helpful to be able to understand the source of scientific names. Although the Latin names do not always correspond to the current English common names, they are often related, and if their meanings are understood, they are easier to recall. The binomial name often reflects limited knowledge or hearsay about a species at the time it was named.

  6. Clade - Wikipedia

    en.wikipedia.org/wiki/Clade

    In the taxonomical literature, sometimes the Latin form cladus (plural cladi) is used rather than the English form. [citation needed] Clades are the fundamental unit of cladistics, a modern approach to taxonomy adopted by most biological fields. The common ancestor may be an individual, a population, or a species (extinct or extant). Clades are ...

  7. Order (biology) - Wikipedia

    en.wikipedia.org/wiki/Order_(biology)

    In the first international Rules of botanical nomenclature from the International Botanical Congress of 1905, the word family (familia) was assigned to the rank indicated by the French famille, while order (ordo) was reserved for a higher rank, for what in the 19th century had often been named a cohors [10] (plural cohortes).

  8. Glossary of scientific naming - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_scientific_naming

    nomen ambiguum (plural: nomina ambigua), (bot.) a name that has been used with more than one meaning; nomen confusum (plural: nomina confusa), (bact.) a name based on a mixed bacterial culture; nomen perplexum (plural: nomina perplexa), a name confusingly similar to another name or names

  9. Taxonomy (biology) - Wikipedia

    en.wikipedia.org/wiki/Taxonomy_(biology)

    Systematic biology (hereafter called simply systematics) is the field that (a) provides scientific names for organisms, (b) describes them, (c) preserves collections of them, (d) provides classifications for the organisms, keys for their identification, and data on their distributions, (e) investigates their evolutionary histories, and (f ...