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December 17, 2017


Introduction to Ecology and Environemnt for IAS – Lesson 1 I Ecology for upsc

Introduction to Ecology Key Points • In ecology, ecosystems are composed of organisms, the communities they comprise, and the non-living aspects of their environment. • The four main levels of study in ecology are the organism, population, community, and ecosystem. • Ecosystem processes are those that sustain and regulate the environment. • Ecological areas of

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