Kingdom (biology)
In biological taxonomy, a kingdom or regnum is a taxon 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 some contexts these are called "divisions"). Currently, textbooks from the United States use a system of six kingdoms (Animalia, Plantae, Fungi, Protoctista, Archaea, and Monera), while British and Australian textbooks describe five kingdoms (Animalia, Plantae, Fungi, Protista, Bacteria).
| ||||||
Search Dictionary: