Biology Video: Evolution - Sources of Variety. Learning Objectives for this video:
Natural Selection Species. Learn about Sources of Variety. Examine the theory of natural selection, and learn about gene mutation, gene flow, and genetic shift.
Survey two sources of genetic variability in a population: mutation, which introduces new alleles, and the recombination of alleles through sexual reproduction.
Gain an understanding of how a population evolves as the result of changes, caused by mutation pressure, gene flow, and genetic drift, in the gene frequencies of that population.
Discover the many benefits of using online video for visual learning. Educational video for teaching the K-12 curriculum provides online learning for children and students of all ages and abilities. Using subtitled video - or video with closed captions - enables children to choose between watching, listening to, or reading each presentation whichever best suites their individual learning style. A wonderful option particularly for dyslexia and special needs education.