Question

Give the characteristic features of the following citing one example.

Urochordata and cephalochordata

Answer 1

Urochordata	In the larval stage of Urochordata, the notochord is exclusively found in the larval tail. The notochord stretches from the head to the tail region in Cephalochordata and is persistent throughout their lives. Urochordate species include Ascidia and Salpa.
Cephalochordata	Cephalochordates include creatures like Branchiostoma. Protochordate refers to both of these creatures. These creatures can only be found in the sea.