Animalia
Animalia
Animalia (pronunciation: /ænɪˈmeɪliə/), also known as the animal kingdom, is a group of multicellular eukaryotic organisms that are characterized by their ability to move voluntarily, digest food internally, and have sensory and nervous systems that allow them to respond rapidly to changes in their environment.
Etymology
The term "Animalia" is derived from the Latin word 'animalis', meaning 'having breath', 'having soul' or 'living being'.
Classification
The kingdom Animalia is divided into several subgroups, including:
- Phylum: A major taxonomic rank below kingdom and above class. Examples include Arthropoda, Chordata, and Mollusca.
- Class: A taxonomic rank below phylum and above order. Examples include Mammalia, Reptilia, and Aves.
- Order: A taxonomic rank below class and above family. Examples include Carnivora, Primates, and Rodentia.
- Family: A taxonomic rank below order and above genus. Examples include Felidae, Hominidae, and Muridae.
- Genus: A taxonomic rank below family and above species. Examples include Panthera, Homo, and Mus.
- Species: The lowest and most precise taxonomic rank in the hierarchy. Examples include Panthera leo (lion), Homo sapiens (human), and Mus musculus (house mouse).
Related Terms
- Eukaryote: An organism whose cells contain a nucleus and other organelles enclosed within membranes.
- Multicellular: An organism that is made up of more than one cell.
- Taxonomy: The science of defining and naming groups of biological organisms based on shared characteristics.
External links
- Medical encyclopedia article on Animalia
- Wikipedia's article - Animalia
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