21. Evolution
Introduction to Evolution and Natural Selection
21. Evolution Introduction to Evolution and Natural Selection
17PRACTICE PROBLEM
Before the industrial revolution, light-colored pepper moths were more abundant than dark-colored ones. However, during the industrial revolution, dark-colored dominated the pepper moth population. When the pollution was reduced, the light-colored form again predominated. Which of the following can likely explain the changes in the pepper moth population?
Before the industrial revolution, light-colored pepper moths were more abundant than dark-colored ones. However, during the industrial revolution, dark-colored dominated the pepper moth population. When the pollution was reduced, the light-colored form again predominated. Which of the following can likely explain the changes in the pepper moth population?