Question
Biology Question on Classification Of Animals
Swim bladder is present in:
A
star fishes
B
bony fishes
C
carp fishes
D
all of these
Answer
bony fishes
Explanation
Solution
Swim bladder or air bladder lies in the body cavity but outside of coelom in bony fishes such as Rohu (Labeo rohita) it is an elongated, white, thin walled sac. filled with air. Swim bladder functions like a hydrostatic organ. It regulates specific gravity of body by secretion or absorption of gas in the air bladder.