A community located near a small marsh had a serious mosquito problem. In an effort to reduce the mosquito population, a powerful insecticide was sprayed
for 8 months. The graph shows the changes in the population throughout the entire treatment program.
Change in
Mosquito Population
10.000
Daily Mosquito Count
Months
Which statement bestexplains the changes observed in the mosquito population?
O The insecticide altered the genetic makeup of some mosquitoes. which increased their resistance and allowed them to survive and pass on the
trait to their offspring.
O Al the mosquitoes began producing antibodies that increased their chance of survival, though some mosquitoes produced them more slowly
than others.
O !he temperature changes over the 8-month spraying program influenced the impact of the insecticide resulting in a decrease followed by an
increase in the population.
O some mosquitoes possessed a trait that increased their resistance to the insecticide and allowed them to survive and pass on the resistance to
their offspring.
Answer
Some mosquitoes possessed a trait that increased their resistance to the insecticide and allowed them to survive and pass on the resistance to their offspring.
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