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Old 08-27-2005, 05:33 PM
Biogradstudent Biogradstudent is offline
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Default ecosystem

I've seen these bowls with fish and live plants that illustrate an ecosystem. It shows how solar energy (from the sun) allows the plants to grow, and then the fish eat the plants. Then there is of course the cycling of the gases -- the plants take up carbon dioxide and release oxygen, and the fish take up oxygen and release carbon dioxide.
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