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P. 4 abiotic factors: straw, soil, water (from the rain), and the CT building.

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People have changed the environment

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i. ecosystems interact: Benthic, terrestrial and aquatic ecosystems at a confluence

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m. An ecosystem of j, k, and l: tree with moss and lichen.

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l. a community of organisms with j and k: Moss and lichen.

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k. a population of the organism in item j: lichens

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j. a single organism: lichen

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h. Primary succession: grass beginning to grow again in barren soil.