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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 ...
Taxonomic Classification How are organisms classified to the species level? A hierarchical system is used for classifying organisms to the species level. This system is called taxonomic classification. The broadest classifications are by domain and kingdom; the most specific classification is by genus and species. The hierarchical groupings in between include phylum, class, family, and order. What is a species? Species are the basic unit of classification.