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As fish cell lines and ciliates are potential alternatives to whole animals in testing environmental samples for toxicity, two cell lines from rainbow trout, RTgill-W1 and RTL-W1, and the ciliate, Tetrahymena thermophila, were compared for their sensitivity to the toxicity of five metals that are commonly found in mining effluents: copper, cadmium, zinc, nickel, and iron. Adding copper to growth medium...
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