Which risk increases when a fish expends additional energy for buoyancy during rapid ascent?

💡 Explanation

Rapid ascent causes swim bladder overexpansion because Boyle's Law dictates decreasing pressure increases the swim bladder volume; therefore swim bladder ruptures (barotrauma) result, rather than increased gill mucus or spinal injury, which depend on other mechanisms.

• Which outcome occurs when vessel element cavitation increases significantly within a tree root?
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