Describe an environmental factor that could influence natural selection and decrease genetic diversity. Pick a specific example to illustrate your point.
Understand the Problem
The question is asking for a description of an environmental factor that impacts natural selection and decreases genetic diversity, along with a specific example to illustrate this point.
Answer
Industrial pollution during the Industrial Revolution favored darker peppered moths, decreasing genetic diversity.
A notable environmental factor that can influence natural selection and decrease genetic diversity is pollution. During the Industrial Revolution in England, industrial pollution darkened tree trunks. This led to a decrease in genetic diversity among peppered moths, as darker moths had a survival advantage.
Answer for screen readers
A notable environmental factor that can influence natural selection and decrease genetic diversity is pollution. During the Industrial Revolution in England, industrial pollution darkened tree trunks. This led to a decrease in genetic diversity among peppered moths, as darker moths had a survival advantage.
More Information
Pollution can create environmental pressures that favor specific traits, such as darker pigmentation in moths, reducing variety in the population.
Tips
A common mistake is overlooking the role of environmental changes in reducing genetic diversity by favoring certain traits.
Sources
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