Question

Urochordates and cephalochordates are fresh water animals.​

Answer 1

Subphyla Urochordata and Cephalochordataare usually referred to as protochordates. These are exclusively marine animals. InUrochordata, notochord is present only in larval tail. InCephalochordata, the notochord extends from head to tail region and is persistent throughout the life

Answer 2

Answer:

Subphyla Urochordata and Cephalochordata are usually referred to as protochordates. These are exclusively marine animals. In Urochordata, notochord is present only in larval tail. In Cephalochordata, the notochord extends from head to tail region and is persistent throughout the life.