In the hierarchy of biological classification, which level comes immediately after Kingdom?

In the hierarchy of biological classification, the correct level that comes immediately after Kingdom is Phylum. The hierarchical system, which organizes living organisms into ranked categories, includes the following major levels: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

After identifying a particular Kingdom, which encompasses a large group of related organisms sharing fundamental characteristics, the next logical step down in the hierarchy is to classify these organisms into Phyla (the plural of Phylum). Each Phylum represents a significant group of organisms that share several key traits. For instance, the Kingdom Animalia includes multiple Phyla such as Chordata (which includes vertebrates) and Arthropoda (which includes insects and crustaceans). Therefore, identifying Phylum as the level immediately following Kingdom reflects an understanding of the organized structure used in biological classification.