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National K -12 Subject
Science
Life Science
Evolution and Diversity
Processes of Evolution
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Browse results: Processes of Evolution
| RESOURCE | GRADE LEVEL | MEDIA TYPE |
|---|---|---|
Adaptive Radiation: Darwin's FinchesFinches on the Galapagos Islands have evolved to exploit almost every possible niche. This diagram shows the range of food sources available on the island and the different beak shapes adapted to exploit each of them. |
9-12 |
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Allopatric SpeciationThese images from the Smithsonian Institution depict Nancy Knowlton's work with snapping shrimp in Panama. Knowlton found that the closing of the isthmus -- dividing the Pacific Ocean from the Caribbean -- resulted in new species of shrimp. |
9-12 |
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Genetic Drift and the Founder EffectThis image of polydactyly illustrates one symptom of Ellis-van Creveld syndrome, which is commonly found in the Amish. Ellis-van Creveld is one example of the founder effect and genetic drift. |
9-12 |
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Mimicry: The Orchid and the BeeIn this photograph from Oxford Scientific Films, a horned bee attempts to mate with an Ophrys orchid, which has evolved to resemble a female bee. |
9-12 |
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Shape of Trees: The Frustration PrincipleThis series of images shows the work of biologist Karl Niklas on the adaptations and evolution of plants. From The Evolutionary Biology of Plants. |
9-12 |
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