What might occur in moth populations if pollution from industry was cleaned up and the color of tree bark returned to its natural color?
A) Dark-colored moths would continue to be the predominant phenotype.
B) Birds would see dark-colored moths more easily than light-colored moths and prey on dark-colored moths more frequently.
C) Dark- and light-colored moths would survive in equal numbers.
D) Birds would prey upon dark- and light-colored moths equally.
E) Selection would favor the hybrid offspring of dark and light moths.

Question

Quizplus · Accepted Answer

If pollution is cleaned up and tree bark returns to its natural color, dark-colored moths would stand out more against the lighter background, making them more visible to predators like birds. This would lead to an increase in predation of dark-colored moths compared to light-colored moths, which would blend in better with the lighter bark.

What Might Occur in Moth Populations If Pollution from Industry