Which taxonomic rank comes immediately after the kingdom level?

The taxonomic rank that comes immediately after the kingdom level is phylum. In the hierarchy of biological classification, the sequence typically follows this order: Domain, Kingdom, Phylum, Class, Order, Family, Genus, and Species.

At the kingdom level, organisms are broadly categorized into large groups based on fundamental characteristics, such as cellular structure and nutritional modes. The next level, phylum, further divides these kingdoms into groups that share more specific anatomical features or evolutionary traits.

For example, the kingdom Animalia is divided into multiple phyla, such as Chordata (which includes all animals with a backbone) and Arthropoda (which includes insects, arachnids, and crustaceans). By identifying organisms at the phylum level, biologists gain a clearer understanding of their shared characteristics and evolutionary relationships, which is essential for the study of biodiversity and taxonomy.