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What is the position of Notochord in the...

What is the position of Notochord in the body of
(a) Urochordata , (b) Cephalochordata ?

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The correct Answer is:
N/a
(a) In the tail region of larva of Urochordata
(b) Norochord extends upto anterior end of the body and persists in larval as well as adult animals.
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LAKHMIR SINGH & MANJIT KAUR-DIVERSITY IN LIVING ORGANISMS-Diversity In Living Organisms
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  2. What do you meant by the term Craniata ?

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  6. What do you mean by the term Osteichthyes ?

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