To counter the ingestion of excess salts, marine teleost fish have specialized cells in their gills that pump _____ ions into the surrounding seawater. As these ions leave the fishes' bodies, they create an electrical gradient that is balanced when _____ ions leave their bodies as well.

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Marine teleost fish have specialized cells in their gills that pump chloride ions into the surrounding seawater to counter the ingestion of excess salts. As chloride ions leave, they create an electrical gradient that is balanced when sodium ions also leave their bodies, maintaining osmotic balance.

To Counter the Ingestion of Excess Salts, Marine Teleost Fish