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Organization of Life. Defining an ecosystem. Examples: Oak forest Coral Reef Vacant lot Basically, all of the organisms living together in a physical environment. Components of an Ecosystem. Energy Minerals and nutrients CO 2 O 2 H 2 O Living organisms. Living and nonliving.
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Defining an ecosystem • Examples: • Oak forest • Coral Reef • Vacant lot • Basically, all of the organisms living together in a physical environment
Components of an Ecosystem • Energy • Minerals and nutrients • CO2 • O2 • H2O • Living organisms
Living and nonliving • Use the terms biotic and abiotic instead • Biotic factors: living parts of ecosystem • EX: plants and animals • Can be dead or living • Can be whole or pieces • Waste counts too!
Living and nonliving • Abiotic: nonliving parts of ecosystem • EX: air, water, rocks, sand, light, temperature
Classify them! • In the space provided, write “B” next to biotic factors and “A”next to abiotic factors. • ______ animals • ______ temperature • ______ air • ______ dead parts of organisms • ______organisms’ waste products • ______water • ______rocks • ______plants • ______sand • ______dead organisms • ______light
From Small to Big: Organizing Life • An organism is only 1 creature • A species is all of the same type of organism that can mate
From Small to Big: Organizing Life • A population is a group of the same species living in the same place at the same time • A community is a location that has more than one population in it
Habitats • Different places in which animals and plants live • All have different traits • Organisms do well in their native habitats