Study Guide Ecology 1 Directions: This study guide is intended to lead you in the right direction when studying for your test. It is your job to study these items and prepare yourself for questions on these topics. 1. Define the following vocabulary terms. Know these for your test. Study Hint: Without using notes or your book try to define as many as possible. Then compare with your Cornell notes to see which ones you know and which ones you don’t. Herbivore Food chain Carnivore Food web Omnivore Energy pyramid Producer Consumer Decomposer Organism Population Community Ecosystem Autotroph Heterotroph Trophic Levels Abiotic Biotic Scavenger 2. What does a food web arrow show? 3. Explain the importance of wolves in Yellow Stone Park. 4. Organisms can be divided into three groups based on how they get their energy. Describe each of these. 5. What are the different types of consumers? Describe each one. 6. Draw, label and explain a food web. 7. Diagram an energy pyramid. Explain the idea of trophic levels, autotrophs, and heterotrophs. Label each level and be prepared to explain the percentage of biomass at each one. 8. What do ecologists study?