Across
- 3. many of the same species
- 5. 100% energy from sun
- 7. succession that starts from rock
- 10. where the arrow goes, energy flows
- 11. never living, water, rocks, air
- 13. radiate --> chemical
- 15. one complete living thing
- 16. succession that starts from soil
Down
- 1. biotic and abiotic factors together
- 2. breaks down decaying matter
- 4. variety of life
- 5. 10% energy passes from one level to next
- 6. living, plants, animals, dead things
- 8. top level consumer
- 9. heterotroph, eats food
- 12. different species interacting
- 14. energy flow in ecosystems