Which Shark Structure is Most Analogous to a Swim Bladder

Question

Which shark structure is most analogous to a swim bladder full of gas?
A)its lateral line system
B)its spiral valve
C)its liver
D)its dead-end nostrils
E)its gills

Accepted Answer

A shark's liver is mostly comprised of squalene, a light and buoyant oil that helps the shark stay afloat in the water. This makes it the most analogous structure to a swim bladder full of gas, which is present in bony fish to help them control their buoyancy.