How important is the presence of air bladder in Pisces? | NCERT solution | Class 12 Biology | Unit-4 Animal Kingdom

Q.10:- How important is the presence of air bladder in Pisces?

 

Answer
Gas bladder or air bladder is a gas filled sac present in fishes. It helps in maintaining buoyancy. Thus, it helps fishes to ascend or descend and stay in the water current.