susanubogu susanubogu
  • 12-09-2016
  • Biology
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A woman treated her home with a pesticide that kills spiders. The first application killed 78% of the spiders. Two months later she applied the pesticide again, but it only killed 45% of the spiders. What would best explain the decrease in the effectiveness of the pesticide?

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DestinysChoice
DestinysChoice DestinysChoice
  • 12-09-2016
The spiders have became resistant to the pesticide.
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