Which homeostatic imbalance occurs if a freshwater fish's gill chloride cells fail?

💡 Explanation

When chloride cells in a freshwater fish's gills fail, active transport of ions stops, because diffusion drives salt loss to the dilute environment, resulting in hyponatremia. Therefore, hyponatremia results instead of hypernatremia, hypokalemia, or hypercalcemia, which require different ionic imbalances or organ dysfunctions.

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