Which one of the following is not a characteristic feature of the sub-phylum Vertebrata?

Dorsal tubular nerve cord

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Ventral muscular heart

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Presence of notochord in the adult

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Presence of kidneys

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Two pairs of lateral appendages, fins or limbs

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Solution

The correct option is C Presence of notochord in the adult
Vertebrates constitute the vast majority of living chordates. They have notochord in the embryonic stage. In adults, the notochord is replaced by the vertebral column. Thus adult vertebrates do not possess notochord.
So, the correct answer is option C.

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