Question

On the basis of the position of the notochord, classify the different prochordates. Justify your answer.

Answer 1

Subphyla of prochordates	Position of notochord
Cephalochordata	The notochord is present only in the tail region of the free-living larva. e.g. Ascidian
Urochordata	The notochord extends throughout the entire length of the body. e.g. Amphioxus