4. The peppered moth lives on the trunks of trees in England. There are two colorations of this moth, light and dark, and both
are eaten by birds. A study found that prior to the Industrial Revolution, the number of light-colored moths found on the
trunks of trees was far greater than the number of dark colored moths. However, after the industrial Revolution, the numbers
were reversed
How would the genetic variation of the moths account for the change in the population sizes of each color? 50.7L152
A. The dark moths were able to kill off many of the light-colored moths, so their numbers increased a lot.
B. Natural selection caused the light species of moth to change into the dark species, allowing them to be better
hidden
C. After the industrial Revolution started, the light colored moths left the area to go live in another, less populated
environment
D. Natural selection favored the dark-colored moths because the factories were producing soot that landed on the
trunks of the trees.

I remember doing a question like this in class while learning about natural selection. The 2 colorations of moth live in a habitat that originally supported the lighter variant due to the light-colored trees. When the industrial revolution began, the soot levels reversed this because the black moths were more camouflaged that the lighter ones. A way we could prove this was the amount of black dresses and dark colored clothing during the time, often due to the fact that lighter colored clothing would turn black by the time the wearer arrived home. The lighter colored moths simply died off a bit because of this.