Exploring the Evolution of the Peppered Moth

The video discusses the peppered moth, a species found in England with two color variations: light and dark. Initially, light-colored moths had a survival advantage due to their ability to blend into light-colored trees, protecting them from predators. However, during the Industrial Revolution, pollution darkened the trees, giving dark moths an advantage. As pollution was later controlled, the environment returned to its original state, and light moths became more common again. This illustrates natural selection and how environmental changes can drive evolutionary shifts.

What color were the moths that had a survival advantage in natural environments before industrialization?

• Uniformly dark

• Light with dark circles

• Dark with light speckles

• Uniformly light

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What is the primary reason light-colored moths had a survival advantage in natural environments?

• Larger size

• More nutritious diet

• Better camouflage

• Faster flight speed

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What principle explains why certain traits become more common in a population?

• Genetic drift

• Mutation

• Natural selection

• Gene flow

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How did pollution from the Industrial Revolution affect the trees?

• Made them grow taller

• Covered them in a layer of dark soot

• Made them resistant to diseases

• Caused them to lose their leaves

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What major event caused dark-colored moths to have a survival advantage?

• The Industrial Revolution

• A volcanic eruption

• The Ice Age

• Deforestation

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What happened to the population of dark-colored moths after the Industrial Revolution?

• It decreased significantly

• It became extinct

• It remained the same

• It increased significantly

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What was a direct consequence of the Industrial Revolution on the peppered moth's color variation?

• No change in color variation

• Shift towards lighter colors due to less pollution

• Shift towards darker colors due to increased pollution

• Complete loss of the dark-colored variation

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What led to the decrease in air pollution and the return of light-colored trees?

• Introduction of new plant species

• Natural disasters

• Legislation and reduced emissions

• The end of the Industrial Revolution

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Which moth coloration became more common again after environmental cleanup efforts?

• Uniformly light

• Uniformly dark

• Light with dark circles

• Dark with light speckles

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What demonstrates evolution by natural selection in the peppered moth story?

• Introduction of new moth species

• Rapid mutation of moth genes

• Constant coloration over time

• Changes in moth coloration in response to environmental changes

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