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Across 3. producers, consumers, and decomposers live and interact in an area form this 7. the study of living things 11. how producers convert light energy from the sun into chemical energy in the form of sugars 12. organisms that are unable to make their own food

Down 1. the study of living and nonliving parts of the environment and their interactions 2. organisms that are too small to be seen with the unaided eye 4. organisms that break down the bodies of dead plants and animals 5. one of these might include grass, a grasshopper, and insect-eating bird and a house cat (2 words) 6. organisms that make their own food 8. a possible explanation for an observation or problem-- an educated guess 9. outer part of Earth that contains all living things 10. all the food chains in a community form one of these (2 words)