Reflecting on the Activity and the Challenge In this activity you looked at the competition among organisms. Sometimes this competition occurs among members of the same species. Other times it occurs among members of different species. Competition is not always bad. In fact, it plays an important role in evolutionary development. However, when a nonnative species is introduced into an ecosystem, the competition can have devastating results. Consider how your issue relates to |
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| 1. Why does competition occur among organisms? 2. What would be an advantage to competition between organisms of the same species? 3. Why do new species that are introduced into an ecosystem often become invasive? 4. What type of evidence would you look for in a natural setting to indicate that there is competition taking place among the plants? 5. Europeans, and their descendants in North America, often describe humans as being at the center of change. Not only do humans cause environmental changes, they are also responsible for those changes. In this worldview, the ideal human acts as a steward or protector for an ecosystem. By contrast, First Nations peoples often describe humans as belonging to an ecosystem. In this worldview, the ideal human lives in harmony with the ecosystem. How would the two worldviews differ in describing what has happened to ecosystems in the United States over the last century? |
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