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Vertebrata Agnatha Pisces - Questions and Answers

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276. Which is not found in vertebrates?
A. Gill opening
B. Bilateral symmetry
C. Cnidoblasts
D. Body scales
Explanation:
277. Stenohaline fishes are
A. Marine fishes only
B. Those which tolerate narrow range of salinity
C. Those which tolerate wide range of salinity
D. Fresh water fishes only
Explanation:
278. In fast swimming fishes, propulsion is mainly due to
A. Pelvic fins
B. Caudal fin
C. Dorsal fin
D. Pectoral fins
Explanation:
279. Herbivorous carps are
A. Labeo and Hilsa
B. Catla and Magur
C. Shark and Singla
D. All the above
Explanation: