Pupils examine the modern view of evolution. They determine how evolution may be a two step process where random mutation is offset by nonrandom selection and is a series of sudden dramatic changes.
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The Effect of Natural Selection on Genes, Traits and Individuals
Rotating through five stations, evolutionary biologists explore the question of how changes in DNA facilitate the changes in a population over time. High-quality, colorful cards of animals, skeletons, skulls, and DNA sequences can all be...
9th - 12th Science CCSS: Designed
Introduction to Evolution and Natural Selection
The evidence for natural selection is presented as a random variation of a characteristic allowing a particular strain of organism to survive with a higher probability of successful reproduction. Population change over a short period of...
18 mins 10th - 12th Science
Between 1968 and 2002, the total number of peppered moths decreased by almost two thirds, although scientists do now know why. In the 10th video of the series, the instructor defines evolution as any changes to a gene pool. Scholars then...
10 mins 9th - 12th Science CCSS: Adaptable
Examples of Natural Selection
Viewers explore real-world examples of both evolution and natural selection as the instructor discusses changes to the environment, mutations causing changes in phenotypes and changing the fitness in organisms, and how humans are...
9 mins 9th - 12th Science CCSS: Adaptable