What is true for urochordates?
AThe notochord is present throughout their lives.
BThe notochord is present only in the larval stage; it is absent in adults.
CThe notochord is present in the larval stage; it becomes vertebrae in adults.
AThe notochord is present throughout their lives.
BThe notochord is present only in the larval stage; it is absent in adults.
CThe notochord is present in the larval stage; it becomes vertebrae in adults.