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2. 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]

3. List of animal classes - Wikipedia

   en.wikipedia.org/wiki/List_of_animal_classes

   The following is a list of the classes in each phylum of the kingdom Animalia. There are 107 classes of animals in 33 phyla in this list. However, different sources give different numbers of classes and phyla. For example, Protura, Diplura, and Collembola are often considered to be the three orders in the class Entognatha. This list should by ...

4. Taxonomic rank - Wikipedia

   en.wikipedia.org/wiki/Taxonomic_rank

   An example is Lithobates (Aquarana) catesbeianus, which designates a species that belongs to the genus Lithobates and the subgenus Aquarana. [15] A subspecies has a name composed of three parts (a trinomial name or trinomen): generic name + specific name + subspecific name; for example Canis lupus italicus. As there is only one possible rank ...

5. Kingdom (biology) - Wikipedia

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

   This six-kingdom model is commonly used in recent US high school biology textbooks, but has received criticism for compromising the current scientific consensus. [13] But the division of prokaryotes into two kingdoms remains in use with the recent seven kingdoms scheme of Thomas Cavalier-Smith, although it primarily differs in that Protista is ...

6. 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 ...

7. Category:Classes (biology) - Wikipedia

   en.wikipedia.org/wiki/Category:Classes_(biology)

   Pages in category "Classes (biology)" This category contains only the following page. This list may not reflect recent changes. ...

8. Linnaean taxonomy - Wikipedia

   en.wikipedia.org/wiki/Linnaean_taxonomy

   Within each class were several orders. This system is based on the number and arrangement of male and female organs. [5] Key to the Sexual System (from the 10th, 1758, edition of the Systema Naturae) Kalmia is classified according to Linnaeus' sexual system in class Decandria, order Monogyna, because it has 10 stamens and one pistil

9. Domain (biology) - Wikipedia

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

   Carl Linnaeus made the classification "domain" popular in the famous taxonomy system he created in the middle of the eighteenth century. This system was further improved by the studies of Charles Darwin later on but could not classify bacteria easily, as they have very few observable features to compare to the other domains.