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    Question

    Animals that possess notochord during the embryonic

    period which later replaced by a cartilaginous or bony vertebral column are called vertebrate animals. Vertebrates which are jawless are said to be
    A Gnathostomata Correct Answer Incorrect Answer
    B Agnatha Correct Answer Incorrect Answer
    C Cephalochordata Correct Answer Incorrect Answer
    D Urochordata Correct Answer Incorrect Answer

    Solution

    Vertebrates which lacks jaws are called as Agnatha.

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