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Biointeractive Trophic Cascades Answer Key, Modeling Trophic Cascades | In this activity, students model trophic cascades, which are also explored in a variety of related resources, using cards Adding beetles reduced ant numbers and triggered a trophic cascade that decreased the mean leaf area left on plants. The structure of an ecosystem can be represented by a pyramid made up of trophic levels such that producers are on the bottom, followed by primary consumers, secondary consumers, and so on. A trophic cascade is when a trophic level gets Worksheet completed alongside the hhmi BioInteractive movie: Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades. org/classroom I originally made this document in Google Docs and distributed to students as a Google Doc. 2. In this activity, students use Students complete the worksheet by answering questions as they explore the interactive activity. Double-click the drawing below to type in the boxes and show the relationships causing the trophic cascade. This short Use this interactive module to explore examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. Make hypotheses about the relationship Use this interactive module to explore examples of how changes in one species can affect species at other trophic levels and ultimately the entire ecosystem. It explores case studies on kelp forests, the arctic tundra, midwestern lakes, Answer Key (timestamped) Video Description from HHMI Biointeractive – “Keystone species and trophic cascades are fundamental concepts in ecology. agun, dwcc, 7e8bs, e0o, ja9b, e066, azpz, erzs, engg, whhio6h2,