Which outcome impairs tuna migration when thermal stratification occurs?

💡 Explanation

Inefficient oxygen extraction reduces migration capacity. The tuna's *countercurrent exchange* in gills becomes less effective due to decreased oxygen gradients; consequently, less oxygen is absorbed because the cooler water limits oxygen transfer, therefore reducing aerobic capacity rather than buoyancy, sensory input, or predator detection.

• Which outcome occurs when excessive light energy disrupts electron transport in C4 photosynthetic pathways?
• Which outcome predictably occurs when avian flight feathers experience excessive bending during high-speed flight?
• Which risk increases when a soaring bird remains aloft during rapid cloud formation?
• Which outcome occurs when vocal mimicry compromises mating signals?
• Which effect occurs in avian respiratory systems when air sac walls become inflamed?
• Which process causes different bristle patterns during late-stage insect metamorphosis?