an animal is a kind of organism & animals are a part of the biological kingdom animalia ->  animals are kinds of organisms that are part of the biological kingdom animalia  animals are kinds of organisms that are part of the biological kingdom animalia & an animal is a kind of eukaryote ->  the organisms in the kingdom animalia are eukaryotes  the organisms in the kingdom animalia are eukaryotes & eukaryotes are a part of the biological domain eukaryota -> the organisms in the kingdom animalia belong to the domain eukaryota