Final answer:
In bony fish, the structure that aids in amplifying sound is linked to their swim bladder. The swim bladder helps these fish detect changes in sound pressure, effectively allowing them to amplify sound in the water.
Step-by-step explanation:
Sound Amplification in Bony Fish
The part of the bony fish that amplifies sound is analogous to the auditory ossicles found in mammals. Although bony fish do not have external ears like mammals, they possess a structure that functions similarly to the middle ear bones in humans (malleus, incus, and stapes).
This structure is primarily used to detect and amplify vibrations in the water, with a connection to the swim bladder aiding in the reception of sound frequencies.
Bony fishes, such as the ray-finned and lobe-finned fishes, have specialized anatomical features that enable them to thrive in aquatic environments.
Their swim bladder, in addition to providing buoyancy control, also plays a role in the detection of sound. By adjusting the gases in the swim bladder, these fishes are capable of perceiving changes in sound pressure, allowing them to amplify sound effectively within their aquatic realm.