Animal
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An Animal is a living organism that is descended from one or more (unknown) multicellular eukaryote species that lived during the Precambrian.
- Context:
- It can (typically) have Animal Properties.
- It can (often) belong to an Animal Category.
- …
- Example(s):
- Counter-Example(s):
- a Fungus, with cell walls made of chitin.
- a Plant.
- a Prokaryote, such as an E.coli.
- See: Plant, Bacteria, Fungus.
References
- http://en.wikipedia.org/wiki/Animal
- Animals are multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. Most animals are motile, meaning they can move spontaneously and independently. All animals must ingest other organisms or their products for sustenance (see Heterotroph).
Most known animal phyla appeared in the fossil record as marine species during the Cambrian explosion, about 542 million years ago. Animals are divided into various sub-groups, including birds, mammals, amphibians, reptiles, fish and insects.
- Animals are multicellular, eukaryotic organisms of the kingdom Animalia or Metazoa. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. Most animals are motile, meaning they can move spontaneously and independently. All animals must ingest other organisms or their products for sustenance (see Heterotroph).