Unique features of vertebrates include the presence of a(n)________.
A)endoskeleton
B)notochord
C)skull and a backbone
D)pharyngeal slit

Question

Quizplus · Accepted Answer

Vertebrates are characterized by the presence of a skull and a backbone, which is a column of bones that run along the dorsal side of the animal. These structures support and protect the nervous system and other vital organs, and allow for greater mobility and flexibility. Endoskeletons are present in both vertebrates and invertebrates, while notochords are only present in certain groups of chordates (such as lancelets and tunicates). Pharyngeal slits are also found in some chordates, but not necessarily in all vertebrates.

Unique Features of Vertebrates Include the Presence of A(n)________