Question 5

A farmer is spraying his crops with a specific pesticide. He notices a drastic decrease in the insect population, so he uses the same pesticide the next year. This time, more insects survive. The next year, almost no insects are killed by the pesticide. Why is this happening?

a
Insects that are not resistant to the pesticide are breeding to create insects that are resistant.
b
The insects resistant to the pesticide are breeding to create more insects with that resistance.
c
The pesticide is attracting insects that are resistant to it to the farmer's fields.
d
Resistant insects from other areas are migrating to the farmer's fields and joining the local insects.

b. The insects resistant to the pesticide are breeding to create more insects with that resistance.