Within a decade of the introduction of a new insecticide, nearly all the descendents of the target pests were immune to the usual-sized dose. The most likely explanation for this immunity is thata. eating the insecticide cause the bugs to become resistant to itb. eating the insecticide cause the bugs to become less resistant to itc. pests with mutations allowing physiological adaptations to the insecticide survived and reproducedd. it destroyed organisms that cause disease in the insects, thus allowing them to live longer

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1. Within a decade of the introduction of a new insecticide, nearly all the descendents of the target pests were immune to the usual-sized dose. The most likely explanation for this immunity is that
a. eating the insecticide cause the bugs to become resistant to it
b. eating the insecticide cause the bugs to become less resistant to it
c. pests with mutations allowing physiological adaptations to the insecticide survived and reproduced
d. it destroyed organisms that cause disease in the insects, thus allowing them to live longer