rdfs:comment
| - In biological taxonomy, kingdom or regnum is a taxonomic rank in either (historically) the highest rank, or (in the new three-domain system) the rank below domain. Each kingdom is divided into smaller groups called phyla (or in Botany, these are called "divisions"). Image:Mantell's Iguanodon restoration.jpg This article is a . You can help My English Wiki by expanding it.
- In biology, a kingdom or regnum is the top-level, or nearly the top-level, taxon of organisms in scientific classification. (Sometimes domain or empire has been used as the topmost level.) The kingdoms are then divided into smaller groups called phyla (for animals) or divisions (for plants).
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abstract
| - In biology, a kingdom or regnum is the top-level, or nearly the top-level, taxon of organisms in scientific classification. (Sometimes domain or empire has been used as the topmost level.) The kingdoms are then divided into smaller groups called phyla (for animals) or divisions (for plants). In his Systema Naturae, first published in 1735, Carolus Linnaeus distinguished two kingdoms of living things: Animalia for animals and Vegetabilia for plants (Linnaeus also treated minerals, placing them in a third kingdom, Mineralia). Linnaeus divided each kingdom into classes, later grouped into phyla for animals and divisions for plants. When single-celled organisms were first discovered, they were split between the two kingdoms: mobile forms in the animal phylum Protozoa, and colored algae and bacteria in the plant division Thallophyta or Protophyta. However, a number of forms were hard to place, or were placed in different kingdoms by different authors: for example, the mobile alga Euglena and the amoeba-like slime moulds. As a result, Ernst Haeckel suggested creating a third kingdom Protista for them.
- In biological taxonomy, kingdom or regnum is a taxonomic rank in either (historically) the highest rank, or (in the new three-domain system) the rank below domain. Each kingdom is divided into smaller groups called phyla (or in Botany, these are called "divisions"). Image:Mantell's Iguanodon restoration.jpg This article is a . You can help My English Wiki by expanding it.
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