Across
- 2. ______ succession: the process of ecological change in an ecosystem where one community is replaced by another community over time
- 4. multiple individuals of the same species living together
- 6. All energy on Earth comes from here.
- 7. A relationship that exists between two or more organisms that are fighting for the same limited resource
- 9. One animal kills and eats another for food
- 10. Break down dead materials and return the nutrients (like carbon) to the soil
- 11. _________ capacity: the theoretical maximum population that a given environment could support
- 13. _______ cycles represent the movement of a particular form of matter through the living and nonliving parts of an ecosystem
- 15. the variety of life in the world
- 16. both organisms involved benefit
Down
- 1. Get energy from nonliving sources
- 3. One organism benefits while the other is unaffected
- 5. _____ factors: aspects of the environment that limit the size a population can reach
- 8. the study of relationships between two organisms or between an organism and its environment
- 12. Found in our atmosphere, organic (living material), and fossil fuels
- 14. Get energy from living or once-living organisms