Chordates in which the notochord gets replaced by a vertebral column at an embryonic stage are called___.

Chordates in which the notochord gets replaced by a vertebral column a

1.	Chordates in which the notochord gets replaced by a vertebral column at an embryonic stage are called___.
Answer» Chordates in which the notochord gets replaced by a vertebral column at an embryonic stage are called___.