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Biointeractive Trophic Cascades Answer Key, The The short film Some Animals Are More Equal than Others: Trophic Cascades and Keystone Species opens by asking two fundamental questions in ecology: “What determines how many species live in . Worksheet completed alongside the hhmi BioInteractive movie: Some Animals Are More Equal than Others: Keystone Species and Trophic Cascades. Double-click the drawing below to type in the boxes and show the relationships causing the trophic cascade. 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. Use the pattern below to describe the trophic cascade. Exploring Trophic Cascades is a 3 part click and learn activity that features short videos, graphs, and graphics. 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. Students can double click on each image and drag/drop the plusses and minusses into the appropriate places. This document provides an overview of trophic cascades through examples of top predator removals affecting ecosystems. 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. wzy8, nxf, asqf1w, t9p1ngq, uj28p, 6cjdisjl, wlif, dez, 1ko1i, dotyur,