AP BIOLOGY

Detailed explanation-1: -When the environment changed, due to pollution, the moth population shifted because light-colored moths became easier to see so they were eaten more often. Organisms that survive have a better chance of reproducing so the population continues to grow.

Detailed explanation-2: -Rather than cause the black color mutation, the sooty conditions of the Industrial Revolution created the perfect backdrop for black moths to survive. As soot covered surfaces throughout Britain, black moths blended in with their background, escaping notice by predators and thriving.

Detailed explanation-3: -Scientists have discovered the specific mutation that famously turned moths black during the Industrial Revolution. In an iconic evolutionary case study, a black form of the peppered moth rapidly took over in industrial parts of the UK during the 1800s, as soot blackened the tree trunks and walls of its habitat.

Detailed explanation-4: -Pollution drives natural selection Throughout the industrial revolution, people noticed that white moths became much rarer while black moths became much more common. Bernard Kettlewell, a research fellow at the University of Oxford, was among the first to investigate this puzzling change in abundance.