Natural selection is one way to explain it. When the survivals
of the insecticide reproduced, the gene that allowed them to live
was passed on. In time, the gene was spread throughout the entire
population and every member of the pest became immune.
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∙ 13y ago
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Q: Within a decade of the introduction of a new insecticide nearly all of the descendants of the target pests were immune to the usual-sized dose the most likely explanation for this immunity is that?