(A) bony fish ()
(B) sea fish (X)
(C) cartilaginous fish (X)
(D) none of these (X)
Answers: Operculum is present in bony fish.
(A) bony fish ()
(B) sea fish (X)
(C) cartilaginous fish (X)
(D) none of these (X)
Answers: Operculum is present in bony fish.
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