Match the taxa in List I with the characteristic feature of their supporting structure in List II. List I List II A. Urochordata 1. Notochord extends from head to tail and persists throughout life B. Cephalochordata 2. Notochord is replaced by a cartilaginous or bony vertebral column in adults C. Vertebrata 3. Notochord is present only in the larval tail D. Hemichordata 4. A rudimentary structure called stomochord is

Step-by-step solution

According to NCERT classification of non-chordates and chordates: In Urochordata, the notochord is present only in the larval tail (A matches 3). In Cephalochordata, it extends from head to tail region and is persistent throughout their life (B matches 1). In Vertebrata, the notochord is present during the embryonic period and is replaced by a cartilaginous or bony vertebral column in the adult (C matches 2). Hemichordata was earlier considered a subphylum under chordata, but it is now placed as a separate phylum u