Question

Tunicates have

• A. a vertebral column in the tail of the adult stage
• B. a notochord in the tail of the larval stage
• C. a notochord in the tail of the adult stage
• D. a vertebral column in the tail of the larval stage

Answer 1

The correct option is B a notochord in the tail of the larval stage

Tunicates are also called urochordates and they have notochord in the tail of the larval stage. The larva undergoes a metamorphosis. Metamorphosis is a process of transformation of an immature larva into a mature adult. The adult loses its tail and hence adults lack notochord.