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Which 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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