Question

give four adaptive features of bony fish

Answer 1

Eye size and position vary depending on the habitat and behavior of the species. ...In most species, the gills are protected by a flexible plate called an operculum. ...The nostrils of most bony fishes have no connection with the mouth or gills. ...Mouth shape and size are good indications of bony fish's feeding habits.

Answer 2

Bony fish have a special adaptation,that allows them to remain buoyant, or float on water. 
-They have a special organ called a swim bladder, which is under the layer of bony skeleton and filled with gas. 
-Bony fish are able to breathe without swimming through their Operculum. This is a flap on each side that covers the gills. 
-Bony fish have color vision. They use this to locate food, find mates and avoid predators.
-The important aspects of bony fishes senses function as follows