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Chapter 3 Cheat Sheet - Biology Honors Prentice Hall...

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Biology Honors Prentice Hall Textbook by Miller/Levine Chapter 3 Cheat Sheet Ecology is the scientific study of interactions among organisms and between organisms and their surroundings, and it can be studied in the biosphere: combined portions of life on earth. To understand relationships, ecologists ask questions about events and organisms that range in complexity from one animal to the biosphere. A species is a group of organisms that are similar enough and produce offspring. Populations are groups of individuals that are in the same species and area. Communities are assemblies of different populations that live together in a defined area. An ecosystem is a collection of all the organisms that live in a particular place including the environment. Groups of ecosystem make up a biome (tundra, desert, rainforest). Scientists conduct modern ecological research by observing, experimenting (to test hypothesis), and modeling (helps scientists understand complex processes, consist of math formulas based on data, tested further by observation and experiments).
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