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Chordata Protochordata - Questions and Answers

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21. Notochord occurs in the adult animal of
A. Osteichthyes
B. Chondrichthyes
C. Protochordata
D. Amphibia
Explanation:
22. The larva of urochordates contain notochord
A. Throughout
B. Head region
C. Tail region
D. Trunk region
Explanation:
23. Lancelet is
A. Hermania
B. Salpa
C. Branchiostoma
D. Doliolum
Explanation:
24. Who raised the status of hemichordates from subphylum to phylum
A. Linnaeus
B. Lamarck
C. Horst
D. Belfour
Explanation:
25. In hemichordates the dorsal nerve cord is
A. Absent
B. Present throughout
C. Restricted to tongue region
D. Restricted to collar region
Explanation:
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