If you wanted to see natural selection working in a population of mosquitoes in response to pesticide, how much pesticide should you use?
A) Enough to kill most but not all the mosquitoes.
B) Enough to kill all the mosquitoes.
C) Just enough so that the mosquitoes will be exposed but not enough to kill any of them.
D) Enough to kill the weakest 1% of the mosquitoes.

Question

Quizplus · Accepted Answer

To see natural selection in action, enough pesticide should be used to kill most but not all of the mosquitoes. This will allow the fittest individuals to survive and reproduce, leading to the evolution of pesticide resistance in the population over time. Using too little pesticide may not produce a strong enough selection pressure, while using too much pesticide will kill off the entire population, preventing any further evolution.

If You Wanted to See Natural Selection Working in a Population