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Transcript
Date: May 18, 2016 Aim #85: How does biodiversity increase stability of an ecosystem? Do Now: Warm-Up Notebook Date Title of Activity 5/18 Name That Relationship! Page # 126 HW: 1) RRWS #1- Life Functions 2) Regents Review Session May 19th 3:15PM Room 142 3) Ecology Test Tuesday 5/24 (periods 1&7) and Wednesday 5/25 (periods 5) 4) Unit 7f due Friday, May 27th • Do not forget Castle Learning!! Aim #85: How does biodiversity increase the stability in an ecosystem? 1) What is meant by the “Circle of Life”? All living things are dependent on one another Why is this important? 2) Why are there so many different species on earth? Due to the evolution of related organisms ADAPTING TO different environments 3) What is Biodiversity All the VARIETY OF living things of a specific area Look for the biodiversity of the soil 4) Why is biodiversity important? What happens If insecticide Is sprayed? All living things are interdependent on one another How do living things depended on each other? All organisms are interrelated by the food web. If one organism in the food web decreases, then others will either increase or decrease 5) What happens to an ecosystem when biodiversity decreases? Ecosystem stability decreases Stability – the ability of the different populations of organisms to survive an environmental change. 6) How does great biodiversity maintain ecosystem stability? In an ecosystem with great biodiversity, organisms rely on more than one type of food, increasing their stability. 7) Which ecosystem has greater stability? • The forest has greater stability because it has greater biodiversity 8) How is biodiversity lost? • Natural disaster & human activities 9) Why is biodiversity important to us? • Biodiversity is a source of medicine, genetic variation and insect & weather resistant crops Amoeba Sisters Food Chains and Food Webs: Bedrock of Biodiversity https://www.youtube.com/watch?v=-oVavgmveyY