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| the process of converting light energy into chemical energy, done by green plants |
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| a diagram showing a specific series of feeding relationships (usually involving 4 or 5 organisms) |
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| a group of interconnected food chains |
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| shows the amount of energy that moves from one trophic level to another |
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| shows the amount of energy that moves from one trophic level to another |
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| a unit of measurement for energy |
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| indicates the position of an organism in a food chain |
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| can make its own food, usually from the sun |
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| organism that must get its energy from eating other organisms |
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| an organism that eats producers |
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| an organism that eats secondary consumers |
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| an organism that eats secondary consumers |
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| an animal with no natural enemies or predators--top of food chain |
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| the process where toxins accumulate in organisms as you move up the food chain |
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| occurs when the population stabilizes over time |
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