Natural Selection - Crash Course Biology #14
CrashCourse・2 minutes read
Hank envisions life as a peppered moth during the industrial revolution, showcasing how natural selection favors dark moths in soot-covered environments based on Charles Darwin's theory of inherited traits impacting survival and reproduction. The principles of natural selection stem from Darwin's observations on adaptations, fitness, variations, heritable traits, competition, and different modes of selection shaping populations.
Insights
- Hank's imaginative exercise highlights the impact of natural selection on peppered moths during the industrial revolution, showcasing how environmental changes drive evolutionary processes.
- Charles Darwin's theory of natural selection, based on observations of adaptations and competition for resources, elucidates how inherited traits influence an organism's ability to survive and reproduce, shaping the genetic composition of populations over time.
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Recent questions
What is natural selection?
Process where traits impact survival and reproduction.
How does natural selection impact populations?
Drives variations, heritable traits, and competition for resources.
What are the different modes of selection?
Directional, stabilizing, and disruptive selection.
What is sexual selection?
Process where traits influence mating success.
How does artificial selection influence populations?
Humans selectively breed for desired traits.
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