Select incorrect statement (A) In vertebrates, notochord is replaced by cartilaginous or bony ve...

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Select incorrect statement
(A) In vertebrates, notochord is replaced by cartilaginous or bony vertebral column
(B) In cephalochordates, notochord extended from head to tail region and persistent throughout life
(C) Protochordates are exclusively marine
(D) Notochord is present in tail of adult in urochordata
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