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A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..

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Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..

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Darwin and Natural Selection

This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..

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This tutorial looks at the relationship between organisms. It also explores how energy is passed on in the food chain an..

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Examples of Natural Selection

Darwin's Finches are an example of natural selection in action. They are an excellent example of the way species' gene p..