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| [ A level ecology ] |
Energy flow through ecosystems |
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| Ecosystems | |
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Simple games to test knowledge of ecology definitions | |||||||
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| Environmental biology - ecosystems | |
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Page from an online biology textbook including energy flow and cycles | |||||||
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| Food chains | |
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Information on food chains, webs, pyramids etc. | |||||||
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| The flow of energy | |
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Article on energy flow and trophic levels. | |||||||
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| The sun is a mass of incandescent gas | |
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A gigantic nuclear furnace..... | |||||||
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