Answer to Question #309973 in Zoology for just

Question

Explain how gas secretion into the swimbladders of bony fish is possible.

Answer 1

Explain how gas secretion into the swimbladders of bony fish is possible.

In bony fish swim bladders, a connection is retained between the swim bladder and the gut, the pneumatic duct, allowing the fish to fill up the swim bladder by "gulping" air. Excess gas can be removed in a similar manner.