Across
- 4. portions of earth where life exists
- 6. average yearly condition of temp./precipitation
- 8. tundra soil that is always frozen
- 10. are made up from same species
- 11. zone that is hot year round
- 12. uses chemicals for carbohydrates
- 14. relationship between 2 close living organisms
- 16. produce their own food
- 19. assembling of populations
- 21. condition of atmosphere at a certain time/place
- 22. zone that has seasons
- 24. feed on dead matter
- 27. organism's ability to live in unfavorable conditions
- 28. study of interactions among organisms
- 29. zone where it is always cold
Down
- 1. organisms purpose
- 2. eat other organisms
- 3. uses light for power in chemical reaction
- 5. only eat animals
- 7. necessity of life
- 9. factor from something nonliving
- 13. small differing climate from surrounding climate
- 15. factor from an organism
- 17. decaying leaves and other organic matter on forest floor
- 18. groups of similar ecosystems
- 20. only eat plants
- 23. interaction when one organism feeds on another
- 24. break down matter
- 25. eat both plants and animals
- 26. level in food web or chain