Which group is incorrectly matched with its characteristic?

The group Ctenophora is indeed incorrectly matched with the characteristic of extensive cephalization. Ctenophores, commonly known as comb jellies, do not exhibit cephalization in the way that many other animal groups do, such as those with a distinct head region possessing a concentration of sensory organs. Instead, Ctenophores have a more radial symmetry and a simpler body structure without the clear division of head and body, which is characteristic of cephalized organisms.

In contrast, Animalia is correctly described as holotrophic, which means members of this kingdom primarily obtain their nutrition by the ingestion of other organisms. Similarly, Anthophyta, or flowering plants, correctly fits the descriptor of having flowers and fruits, which are defining features of this group. Cnidaria, which includes organisms such as jellyfish and corals, can exhibit a dimorphic life cycle, alternating between polyp and medusa forms in various species.