Which outcome reduces efficiency when fish experience hypoxia?

💡 Explanation

Reduced oxygen slows diffusion across the gills because the rate of diffusion depends on the concentration differential. Therefore, there is less oxygen diffusing into the blood from water, rather than enhanced uptake, which occurs under normal conditions.

• Which outcome occurs as caterpillar imaginal discs develop?
• Which adaptation increases soaring efficiency more in birds utilizing thermal updrafts?
• Which metabolic shift occurs when prolonged drought forces plants to extensively close their stomata?
• Which outcome commonly occurs when Monarch butterflies’ magnetic receptors are disrupted during migration?
• Which outcome occurs when marine fish excrete excess magnesium sulfate without sufficient water?
• Which adaptation minimizes energy expenditure during thermal soaring?