Question

Many nonchordates have tails. Which feature differentiates a chordate's tail from that of a nonchordate?

Answer 1

Chordata nontochord persists in embryo or throughout the life. Non-Chordata notochord is absent and post anal tail is absent.

Answer 2

i think thAT-
Chordata nontochord persists in embryo or throughout the life. Non-Chordata notochord is absent and post anal tail is absent.
@iraq

Answer 3

The answer is "chordates have postanal tails"