Read the following statements regarding the fate of the notochord in different groups of animals and select the incorrect statement.

Step-by-step solution

The phylum Chordata is divided into three subphyla: Urochordata, Cephalochordata, and Vertebrata. In Urochordata, the notochord is present only in the larval tail. In Cephalochordata, it extends from head to tail region and is persistent throughout their life. In Vertebrata, the notochord is present during the embryonic period and is replaced by a cartilaginous or bony vertebral column in the adult. Therefore, not all members of the phylum Chordata possess a vertebral column. Only members of the subphylum Vertebrat