Question : "All vertebrates are chordates but all chordates are not vertebrates",Evaluate and substantiate the statement

Question : "All vertebrates are chordates but all chordates are not ve

1.	Question : "All vertebrates are chordates but all chordates are not vertebrates",Evaluate and substantiate the statement
Answer» Solution :All vertebrates have NOTOCHORD in the embryonic STAGE .But all chordates LACK vertebral column.