OnlineCBT
Biology · ANIMAL KINGDOM
हिन्दीCompare Subphylum Urochordata and Subphylum Cephalochordata regarding the extent and persistence of the notochord:
Correct answer · Option 3
In Urochordata, notochord is present only in larval tail; In Cephalochordata, it extends from head to tail and persists throughout life
Explanation
In Urochordata (e.g., Ascidia, Salpa), the notochord is present only in the larval tail. In Cephalochordata (e.g., Branchiostoma), it extends from head to tail region and is persistent throughout life.
