Which of the following is NOT a characteristic of the phylum Arthropoda?

The characteristic that is not associated with the phylum Arthropoda is the presence of feathers. Insects, arachnids, crustaceans, and other members of this phylum are characterized by their body segmentation, which typically includes a distinct head, thorax, and abdomen. They also possess a hard exoskeleton made of chitin that acts as protection and support. Additionally, jointed appendages, such as legs and antennae, allow for mobility and interaction with their environment.

Feathers are a feature of birds, which belong to a different phylum known as Chordata. This illustrates the distinct biological classifications and traits of various animal groups. Recognizing the characteristics specific to the phylum Arthropoda helps clarify the differences between diverse animal structures and their classifications in the biological hierarchy.