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Internal fertilization and viviparity are the characteristics of class
(a)Chondrichthyes
(b)Reptilia
(c)Amphibia
(d)Osteichthyes

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Important Questions on Animal Kingdom
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The character common to both cartilaginous and bony fishes is the presence of

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Lateral line organ occurs in

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In sharks, the mouth and nares are

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Which of the following fish is famous for migration?

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Common name of the fish Anguilla is

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The pectoral fins get enlarged in
