Question

Air bladder is absent in

• A. Sea horse
• B. Shark
• C. Flying fish
• D. All of the above

Answer 1

The correct option is B Shark

Air bladder provides buoyancy to the aquatic animals thus helps them to stay at the current water depth without having to waste energy in swimming. It is found in many bony fishes but not in cartilaginous fishes. Shark being a cartilaginous fish, does not possess air bladder.

So, the correct answer is option B.