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Vertebrata Agnatha Pisces - Questions and Answers

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1. Potamodromous fishes migrate from
A. Fresh to fresh water
B. Fresh to marine water
C. Marine to fresh water
D. Marine to marine water
Explanation:
2. Oceanodromous fishes migrate from
A. Fresh to fresh water
B. Fresh to marine water
C. Marine to fresh water
D. Marine to marine water
Explanation:
3. Scoliodon is called Dog Fish because of its
A. Carnivorous nature
B. Mouth
C. Power of smell
D. Gait
Explanation:
4. Electric organs occur in
A. Sharks
B. Goldfish
C. Porpoises
D. Rays
Explanation:
5. An edible fresh water teleost is
A. Shark
B. Ray and Skate
C. Catla catla
D. Hilsa hilsa
Explanation: