BRAINLIEST
Sarah and Alex have been dealing with an infestation of Chinch bugs on their farm for the past 5 years. They have called a pest control company to spray an insecticide, ChinchBeGone, over 20 times on their land. For the first year, the insect population decreased significantly but after some time, the insect population remained constant even after treatment.

Using the words below, name and describe the process that led to the Chinch bugs surviving the insecticide treatment.

- Genetic variation

- Mutation

- Selection

- Allele frequency