Which of the Following Features is Absent in Lancelets

Question

Which of the following features is absent in lancelets?
A) Notochord
B) Nerve cord
C) Backbone
D) Tail
E) Gill slits

Accepted Answer

Backbone is absent in lancelets. Lancelets have a notochord, nerve cord, tail, and gill slits, but they do not have a backbone.