Metazoa /Meta·zoa/ (met″ah-zo´ah) that division of the animal kingdom embracing the multicellular animals whose cells differentiate to form tissues, i.e., all animals except the Protozoa.metazo´almetazo´an
metazoa
Met·a·zo·a (m t  -z  )n. A subdivision of the animal kingdom that includes all multicellular animal organisms having cells that are differentiated and form tissues and organs. met a·zoan adj. & n. |
metazoa
[-zō′ə]
Etymology: Gk, meta + zoon, animal
a classification that includes animals that have tissues and organs. All animals except sponges are metazoa.
Metazoa
the division of the animal kingdom that includes the multicellular animals, i.e. all animals except the Protozoa.
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