1. Multicellular organisms having less-specialized cells than in the Metazoa; comprises the single phylum Porifera
   - subkingdom Parazoa

1. Primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies
   - sponge, poriferan

Type of: invertebrate, subkingdom

Part of: animal kingdom, Animalia, kingdom Animalia, phylum Porifera, Porifera

Encyclopedia: Parazoa

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