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Best Answer: Domain ... Population and domain are not technically taxonomic groups. The animal kingdom is the most inclusive taxonomic group. The second most ...
By far most species of animals are insects, with groups such as mollusks, crustaceans, and nematodes also being especially diverse. By this measure our own group, the vertebrates, is relatively inconsequential from a diversity perspective. All animals are members of the Kingdom Animalia, also called Metazoa.