How did the Industrial Revolution impact the population of peppered moths in Britain? (1 point)

Question

• The Industrial Revolution caused the proportions of each color morph in the population to become unequal.
• The light-colored moths became more common.
• The dark-colored moths became more common.
• The Industrial Revolution caused the proportions of each color morph in the population to become equal.

Answer 1

The correct answer is:

• The dark-colored moths became more common.

During the Industrial Revolution, pollution from factories darkened the trees and surfaces in some areas, which made the dark-colored peppered moths (melanic form) less visible to predators compared to the light-colored moths. As a result, the dark-colored moths had a survival advantage and their population increased relative to the light-colored moths.