enviro - Ch3 SG - Chapter 3 (35-63): Study Guide Page 1...

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Page 1 What is the definition of ecology? Study of organisms and how they interact with each other and their non-living environment What are examples of Microbes and what important roles do they play in the ecosystem? Examples: bacteria, protozoa, fungi, and yeasts Microbes convert nitrogen gas in the atmosphere into forms that plants can take up from the soil as nutrients. They also help produce foods like bread, cheese, yogurt, vinegar, tofu, soy sauce, beer, and wine. Explain the relationship between population, community, eco- system, and biosphere. Population - a group of interacting individuals of the same species occupying a specific area Community - populations of different species of plants, animals and microorganisms living and interacting in the same area. Ecosystem - a community of different species interacting with one another and with their physic- al environment of matter and energy. Biosphere - all of the earth’s ecosystems together Explain what natural capital is contained in each of these spheres: Lithosphere, Hydrosphere, Biosphere, and Atmo- sphere. Lithosphere - crust and top of upper mantle Hydrosphere - water Biosphere - living and dead organisms Atmosphere - air What is a biome? Big areas of land defined by home much water (rainfall) they get and what kind of plants grow
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enviro - Ch3 SG - Chapter 3 (35-63): Study Guide Page 1...

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