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← Nature & AnimalsWhich outcome occurs for freshwater arctic fish when environmental temperatures significantly increase?
A)Decreased urine production to conserve ions
B)Increased ion excretion via gill filaments✓
C)Increased water excretion through specialized cells
D)Reduced salt uptake via branchial chloride cells
💡 Explanation
Increased temps cause a higher metabolic rate, leading to increased water intake; osmoregulation via ion excretion increases via gill filaments because it combats water influx. Therefore, this leads to ion loss, rather than ion conservation or adjusted water excretion alone.
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