Which action occurs in a fish's swim bladder when it begins to ascend quickly from ocean depths?

💡 Explanation

When a fish ascends rapidly, the reduced pressure causes gas diffusion into the swim bladder, expanding bladder volume in accordance with Boyle's law, leading to increased buoyancy pushing it upwards even faster. Therefore, gas diffusion occurs, rather than dissociation, precipitation, or active transport which are not directly related to pressure changes during ascent.

• Which mechanism prevents boundary layer separation, maximizing lift in avian soaring?
• Which mechanism enables birds to maintain consistent pulmonary gas exchange despite discontinuous ventilation?
• Which physiological effect occurs when a mammal experiences vasodilation in response to localized environmental heating?
• Which consequence occurs when a holometabolous insect larva is prematurely exposed to ecdysone during its feeding larval stage?
• Which mechanism assists salmon in navigating varied salinity environments using polarized light maps?
• Which adjustment, impacting lift distribution, allows soaring birds to maintain stable flight in turbulent thermally unstable air?