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Natural Selection - CrashCourse Biology #14

Hank guides us through the process of natural selection, the key mechanism of evolution.Like CrashCourse on Facebook: CrashCourse on Twitter: of Contents:1) Natural Selection 1:272) Adaptation 2:563) Fitness 3:364) Four Principals 3:54a. Variations 4:01b. Heritability 4:17c. "The Struggle for Existence" 4:25d. Survival and Reproductive Rates 5:005) Biolography 5:596) Modes of Selection 7:40a. Directional Selection 8:17b. Stabilizing Selection 8:56c. Disruptive Selection 9:277) Sexual Selection 10:228) Artificial Selection 11:24References for this episode can be found in the Google document here: video uses the following sounds from"20071104.forest.04.binaural.mp3" by dobroide"ForestBirds.wav" by HerbertBolandcrashcourse, science, biology, natural selection, genetics, peppered moth, inherited traits, population genetics, charles darwin, darwin, on the origin of species, evolution, adaptation, galapagos finches, fitness, variation, phenotype, heritable, malthus, survival rate, reproductive rate, crossbreeding, inbreeding, genotype, directional selection, stabilizing selection, disruptive selection, selective pressures, sexual selection, artificial selection, selective breeding
Length: 12:45


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