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Vertebrata Agnatha Pisces - Questions and Answers

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6. A cartilaginous fish with an operculum is
A. Scoliodon
B. Chimaera
C. Torpedo
D. Trygon
Explanation:
7. Which one has a brood pouch for caring of eggs?
A. Anabas
B. Scoliodon
C. Hippocampus
D. Cuttle fish
Explanation:
8. Fishes with swim bladder without direct communication with exterior and where there is little separation of secretory and absorbent parts are
A. Physostomes
B. Physoclists
C. Euphysoclists
D. Paraphysoclists
Explanation:
9. An indigenous fish used in biological control is
A. Catla
B. Labestes
C. Gambusia
D. Aplocheilus
Explanation:
10. Shagreen is skin of
A. Cod fish
B. Sole fish
C. Shark
D. Whale
Explanation:
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