Across
- 3. the effect created when certain gases like CO2, water vapor and methane trap heat
- 6. type of forest that features harsh winters and evergreen trees
- 8. group of ecosystems classified by climate and plant life
- 9. group of interbreeding organisms coexisting together
- 10. symbiotic relationship where one organism benefits and the other is neither harmed nor benefited
- 12. another word for an autotroph in the food chain
- 16. experiences hot/dry summers, mild winters and has shrubs, small trees and cacti with coyotes
- 17. type of bacteria which converts ammonia to nitrites in the nitrogen cycle
- 18. symbiotic relationship where one organism benefits and the other is harmed
- 20. the main gas which makes up the air we breathe
- 21. evaporation of water from the leaves of a plant
- 24. the specific environment of an organism including both biotic and abiotic factors
- 28. study of interactions between living and nonliving things
- 29. dominated by tree species that lose their leaves seasonally
Down
- 1. the variable manipulated by the experimenter
- 2. this element is found in rocks and soil and is released from the rocks by weathering
- 4. group of populations living and interacting in the same area
- 5. an organism that breaks down dead remains of another
- 7. type of factors affecting organisms which include the nonliving physical and chemical conditions
- 11. symbiotic relationship where all organisms benefit
- 13. Experiences high rainfall, dense vegetation and pool soil quality
- 14. A food chain is a series of steps in which organisms transfer this by eating and being eaten
- 15. biome which includes oceans
- 19. experiences rainy seasons alternating with drought and features grasses and lions
- 22. primary means for removing carbon from the atmosphere
- 23. an organism's role in its ecosystem
- 25. factors in an environment which are living
- 26. features permanently frozen soil that does not allow growth of large plants
- 27. experiences hot days, cold nights and very little rainfall