What do bony fishes use to make themselves more buoyant?
A)hollow fins
B)decreased drag
C)gills
D)swim bladder

Question

Quizplus · Accepted Answer

Bony fishes use swim bladders to make themselves more buoyant. The swim bladder is an internal gas-filled organ that helps the fish control its buoyancy and maintain its position in the water column. By adjusting the amount of gas in the swim bladder, the fish can control its depth and remain at a comfortable level in the water.

What Do Bony Fishes Use to Make Themselves More Buoyant