A) star fishes
B) bony fishes
C) carp fishes
D) All of these
Correct Answer: B
Solution :
Bony fishes (Osteichthyes) are cartilaginous in embryonic stage but in aduly form more or less it is replaced by bones. A swim bladder is present in these fishes, which helps in floating. Star fish is not a fish. It is an echinoderm, so swim bladder is absent in these. Carp fish is a freshwater food fish.
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