Across
- 4. meat eaters ex: tigers
- 6. a chemical substance that reacts with another
- 7. can only be a primary consumer ex: bunny
- 11. shows the amount of energy need to support the ecosystem
- 13. process in which producers convert CO2 and H2O into sugar and oxygen
- 16. place where photosynthesis takes place
- 19. must eat food to receive energy
- 20. consumers that are hunted and killed
- 21. use radiant energy to create their own food
Down
- 1. the chemical reaction
- 2. show feeding relationships in an ecosystem
- 3. levels of consumers in an ecosystem
- 4. a written expression of a chemical reaction
- 5. receives energy from the primary consumer
- 8. consumers who hunt and kill other consumers
- 9. glucose is an example of this type of energy
- 10. humans are __________
- 12. light energy
- 14. receives energy from the secondary consumer
- 15. another name for sugar
- 17. a chemical substance created in a chemical reaction
- 18. 1st consumer