animalia
Definition
Noun: 1. The taxonomic kingdom comprising all living or extinct animals: In biological classification, Animalia is one of the fundamental kingdoms, encompassing all multicellular, eukaryotic organisms that are generally motile, heterotrophic (obtaining nutrients by ingesting other organisms), and develop from a blastula during embryonic development.
Usage Notes
- "Animalia" is a scientific, taxonomic term used primarily in biology and related academic fields.
- It is always capitalized as it is a proper noun referring to a specific kingdom.
- In everyday language, people typically use the word "animals." The term "Animalia" is used for formal classification and to distinguish this kingdom from others like Plantae (plants) or Fungi.
Examples
- Scientific Context:
- The kingdom Animalia includes creatures as diverse as sponges, insects, birds, and mammals.
- In our biology class, we studied the major characteristics that define Animalia.
- The phylogenetic tree shows the evolutionary relationships within Animalia.
Advanced Usage
- Hierarchical Classification: The term is used within the hierarchical system of biological taxonomy (Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species).
- Example: Humans are classified as Homo sapiens within the kingdom Animalia.
Variants and Related Words
- Animal (n): A living organism of the kingdom Animalia; the common, non-scientific term.
- Dogs and cats are popular domestic animals.
- Metazoa (n): A synonym for Animalia, often used in more specific zoological contexts to refer to multicellular animals.
- Fauna (n): The animals of a particular region, habitat, or geological period. This refers to the collective animal life, not the taxonomic group itself.
- The fauna of the Australian outback is unique.
Synonyms
- Animal Kingdom: The common English name for the taxonomic kingdom Animalia.
- Metazoa (scientific synonym).
Related Phrases / Contexts
- "Kingdom Animalia": The full, formal name often used in textbooks and scientific literature.
- The course Biology 101 covers an introduction to Kingdom Animalia.
Noun
-
taxonomic kingdom comprising all living or extinct animals
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