1. The members of subphylum Vertebrata possess notochord during the embryonic period. 2. The notochord is replaced by a cartilaginous or bony vertebral column in the adult. Regarding 1 and 2:
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Both are correct Regarding 1 and 2:The members of subphylum Vertebrata possess notochord during the embryonic period. The notochord is replaced by a cartilaginous or bony vertebral column in the adult.
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