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Across 1. is a diagram that shows the relative amounts of energy in different trophic levels 7. is a layer in the structure of feeding relationships 8. organisms that make their own food

Down 1. is movement of water into the atmosphere 2. are plants such as peanuts, beans, and clover that have colonies of nitrogen-fixing bacteria 3. is the evaporation of water on plants 4. organisms that cannot make their own food 5. is a network of food chains representing the feeding relationships 6. a series of different organisms that transfer food between the trophic levels