Across
- 3. population of consumers
- 4. when animals make other animals
- 5. to form into something
- 7. a number of animals
- 9. population number going up
- 10. a form of plant life
- 12. population number goes down
- 14. a form of sugar
- 15. one that studies ecology
Down
- 1. stored energy
- 2. fighting over one thing
- 6. system of ecology
- 8. an group of atoms formed together
- 11. population stays down
- 13. a bigger food chain