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Type: Multiple-Choice
Category: Evolution
Level: Grade 9
Author: Caela
Last Modified: 4 years ago

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Evolution Question

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Grade 9 Evolution

After many generations, an insect species evolved resistance to a particular pesticide. This occurred because spraying the pesticide                                                              .
  1. killed most of the insects in the population.
  2. caused another inspect species to go extinct.
  3. caused mutations in the insect species’ gene pool.
  4. selected for insects that were able to survive and reproduce.