Which of the Following are Not Arthropods

Question

Which of the following are not arthropods?
A) Pycnogonids
B) Brachiopods
C) Barnacles
D) Chelicerates

Accepted Answer

Brachiopods are not arthropods; they belong to their own phylum, Brachiopoda, and are more closely related to mollusks. Arthropods include insects, arachnids, myriapods, and crustaceans, among others, which does not include brachiopods.