Across
- 6. organisms cp-operate to ensure the survival
- 9. +0
- 11. plants get energy from the sun
- 12. normally a plant at the start of a food web
- 13. Any living thing eg: animals and plants
Down
- 1. the opposite to abiotic
- 2. a balance in an ecosystem so that it remains alive
- 3. the cell which photosynthesis occurs
- 4. +-
- 5. can be first second or third-order in a food web
- 7. ++
- 8. non-living things
- 10. the original energy in the ecosystem
- 11. the relationship between two organisms where one of the organism where an organism kills another
- 12. animal being hunted