Chapter 21: ActivitiesActivity 21.2 Natural Selection in Alpine Skypilots |
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This activity focuses on the experimental methods that researcher Candace Galen used to determine whether natural selection is causing differences between alpine and subalpine populations of the alpine skypilot, Polemonium viscosum. This plant grows on rugged mountainsides near timberline in the western United States. In the two populations studied, the size and smell of alpine skypilot flowers differed, as did the type of pollinator. In this activity, you’ll investigate how Galen tested her hypotheses about the occurrence of natural selection in these populations.
Prequiz Chapter 21, Section 21.1, The Evidence for Evolution |