1. Urban areas have a bigger population density compared to suburban areas. 2. Urban areas usually include the inner, or main city, whereas suburban areas are those that are just adjacent to the city, or surround the city. 3. Urban areas are more congested in terms of people and establishments compared to suburban territories.
Noun. 1. Parazoa-multicellular organisms having less-specialized cells than in the Metazoa; comprises the single phylum Porifera. subkingdom Parazoa. animal kingdom, Animalia, kingdom Animalia-taxonomic kingdom comprising all living or extinct animals.phylum Porifera, Porifera-coextensive with the subkingdom Parazoa: sponges.oun. 1. Parazoa-multicellular organisms having less-specialized cells than in the Metazoa; comprises the single phylum Porifera. subkingdom Parazoa. animal kingdom, Animalia, kingdom Animalia-taxonomic kingdom comprising all living or extinct animals.
sponge. common name for members of the aquatic animal phylum Porifera Porifera[Lat.,=pore bearer], animal phylum consisting of the organisms commonly called sponges.It is the only phylum of the animal subkingdom Parazoa and represents the least evolutionarily advanced group of the animal kingdom......ommon name for members of the aquatic animal phylum Porifera Porifera[Lat.,=pore bearer], animal phylum consisting of the organisms commonly called sponges.