Across
- 3. all the ecosystems in a portion of the world with a specific climate.
- 5. depend on autotrophs for energy.
- 6. a relationship where both organisms benefit.
- 8. factors refer to nonliving parts of an environment.
- 10. is the unique role a species plays in the environment.
- 12. is made of the gases surrounding the earth.
- 14. the portion of the earth where life is found.
- 16. is made of rocks, minerals, and soil.
- 18. obtain energy from the sun or chemical compounds.
- 20. is when one organism benefits and the other is unaffected.
Down
- 1. is where an organism lives (can be shared with other species)
- 2. Interacting populations (many species together in one place)
- 4. group of organisms of one species in one place at one time.
- 7. eat animals that have already died
- 9. is made of all the water that is on Earth’s surface, underground, and in the air
- 11. factors refer to living organisms that inhabit an environment.
- 13. relationships are two species living in close contact for some or all their lives.
- 15. is the scientific study of interactions between organisms and their environments
- 17. Level a rank in a feeding hierarchy.
- 19. break down dead and decaying matter into simpler molecules that can be absorbed