Across
- 2. The species that is the first to colonize an ecosystem
- 3. The role an organism plays in an ecosystem
- 5. The living parts of an ecosystem
- 6. Where an organism lives to survive
- 9. The variety of life on earth
- 16. An autotrophic organism that can produce complex organic compounds
- 17. An evolved interaction or close living relationship between organisms from different species
- 20. The non living parts of an ecosystem
- 21. The introduction of a harmful materials in an ecosystem
- 23. Relationship between two species of organisms in which one species benefits while the other is unaffected
- 26. The overall weather of an ecosystem
- 27. A curve in a graphic representation of the number of individuals in a population that can be expected to survive to any specific age
- 29. An organism that can make its own food
- 30. Species that play a key role in their ecosytem
- 31. A level or position in a food chain
- 32. The buildup of a chemical in an ecosystem
Down
- 1. The max number of organisms an ecosystem can hold
- 4. type of ecological succession in which plants and animals first colonize a barren, lifeless habitat
- 7. An organism that relies on producers for nutrition and energy
- 8. A major community of plants and animals
- 10. A pyramid showing each trophic level of an ecosystem
- 11. When a population leaves an area/ecosystem
- 12. An organism that cannot make its own food
- 13. All the food chains in a single ecosystem
- 14. Movement into a new area/ecosystem
- 15. The study of how organisms interact with their environment and other organisms
- 18. An interacting group of organisms in a common location
- 19. All of the interactions of a species with the other members of its community,
- 22. An organismm that decomposes organic material
- 24. The type of ecological succession in which life comes back after a major disturbance
- 25. A type of symbiotic relationship that causes one organism to harm another
- 28. Weight or total amount of living organisms