Ecosystems Test Wednesday, May 13th You need to know: Vocabulary: ecosystem, biotic, abiotic, niche, habitat, commensalism, mutualism, parasitism, producers, consumers, herbivore, carnivore, omnivore, scavenger, decomposer, climate, food web, energy pyramid, photosynthesis, and biome. What is biodiversity? What are the 3 most diverse biomes and what are 2 reasons why biodiversity is important? Describe five ways biodiversity is being decreased (HIPPO) Introduced species-what are they? How do they arrive in new areas? What type of damage can they cause? How can we get rid of them? What are some biotic and abiotic parts of an ecosystem? Be able to draw or explain/identify roles in a food web if given some information about the organisms in it. (producer, consumer, scavenger, etc.) What happens if one part of the food web/food chain is removed? Which populations go up? Which populations go down? Be able to identify the type of relationship between two organisms (parasitism, commensalism, mutualism) Be able to explain how the six different abiotic factors affect the living organisms in an ecosystem. Why is each abiotic factor important? What do food webs and energy pyramids show us? Why is plankton such an important part of a food web? Why does being a vegetarian make sense using the energy pyramid? What do plants produce during photosynthesis? What do they use? The test will consist multiple choice, short answer, and reading and making graphs and data tables.