Final answer:
In biology, a kingdom is a taxonomic rank below the domain level, incorporating groups of organisms based on specific characteristics.
Explanation:
In biology, a kingdom is a taxonomic rank that is below the domain level. The most commonly accepted kingdoms in the modern classification system are within the Eukarya domain and include Animalia, Plantae, Fungi, and Protista. These kingdoms represent different groups of organisms based on characteristics such as cell structure, mode of nutrition, and other factors.
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