Operculum

Question

A)a deep sea fish with a skeleton of cartilage
B)a flap covering the gills of a bony fish
C)an organ along the side of a fish that can detect movement in the water
D)scales that resemble a tooth, having a broad base and a narrow pointed top
E)an organ for breathing underwater, consisting of membranes through which oxygen can pass

Answer 1

B) a flap covering the gills of a bony fish.