Effects of Natural Selection on Finch Beak Size is one of a series of Data Point resources from HHMI Biointeractive. Data Points engage students in analyzing and interpreting data from primary literature in the biological sciences. The resources are intended to provide authentic phenomena to spark student discussion and exploration, but they can also serve as three-dimensional assessment items. In this example, students analyze the effects of a drought on the distribution of beak sizes in a population of ground finches in the Galapagos Islands.
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