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Symbiosis: a relationship between organisms in an ecosystem. Commensalism: One organism benefits, and the other is unaffected. Mutualism: Both Organisms Benefit. Parasitism: One organism benefits, but the other is harmed.
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Commensalism: One organism benefits, and the other is unaffected. Mutualism: Both Organisms Benefit Parasitism: One organism benefits, but the other is harmed.