Q. In which subphylum is the notochord present only in the larval tail?
A) Cephalochordata
B) Urochordata
C) Vertebrata
D) Hemichordata
Explanation
In Urochordata (e.g., Ascidia, Salpa, Doliolum) the notochord is confined to the larval tail. In Cephalochordata (Branchiostoma) it extends from head to tail and persists through life.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.