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This illustrated video explores how natural and sexual selection can shape the way animals look and act, sometimes transforming the drab into the magnificent. To access the associated multiple choice and open answer questions, you'll need to register with the site.
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Correspondence to the Next Generation Science Standards is indicated in parentheses after each relevant concept. See our conceptual framework for details.
- Evolution results from natural selection acting upon variation within a population. (LS4.B)
- Traits that are advantageous often persist in a population. (LS4.B, LS4.C)
- Individual organisms with advantageous traits are more likely to survive and have offspring. (LS4.B, LS4.C)
- There is variation within a population. (LS3.B)