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Across 2. The transfer of energy through the levels in a food chain. 3. A model that shows the flow of energy from one trophicevel to the next in an ecosystem 4. A series of events in which one organism eats another anfd obtains energy. 8. Consumes autotrophs. 9. An organism that breaks down dead organisms and return nutrients into the earth. 11. Consumes primary consumers 12. An organisms that only eats plants.

Down 1. Consumes tertiary consumers. 2. Consumes secondary consumers. 4. Many overlapping food chains in an ecosystem. 5. An organism that consume other organisms. 6. Exclusively consume other dead consumers. 7. An organism that eats both plants and animals. 8. An organism that make their own food by using photosynthesis. 10. An organism that only eats other organisms.