explain animallia kingdom
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All animals are members of the Kingdom Animalia, also called Metazoa.
All members of Animalia are multicellular, and all are heterotrophs (that is, they rely directly or indirectly on other organisms for their nourishment). Most ingest food and digest it in an internal cavity.
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The kingdom Animalia, or Metazoa, includes all animals. Animals are multicellular, eukaryotic organisms, which are heterotrophic, meaning they obtain nutrition from organic sources. Most animals obtain nutrition by ingesting other organisms or decomposing organic material.
Animal cells are characterized by their lack of a rigid cell wall exhibited by fungi and plants. Instead, animal cells are held together by structural proteins such as collagen. All animals, except for the sponges, are made up of cells organized into tissues that are specialized for some function. As a result, most animals are capable of complex behavioral responses and rapid movement.
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