ecology crossword

2. an organism that produces complex organic compounds using carbon from simple substances such as carbon dioxide
7. predictable atmospheric conditions of a specific area
9. Living things that have to hunt, gather and eat their food
11. organisms that break down dead or decaying organisms
12. a close, prolonged association between two or more different biological species.
19. the match of a species to a specific environmental condition.
21. the practice of living as a parasite in or on another organism.
23. a graph showing the number or proportion of individuals surviving to each age for a given species or group.
25. non-living part of an ecosystem that shapes its environment.
27. any major regional biological community such as that of forest or desert
28. a graphical representation designed to show the biomass or bioproductivity at each trophic level in an ecosystem.
29. a system that environments and their organisms form through their interaction.
31. to movement of an organism to an area.
32. the concentration of individuals within a species in a specific geographic locale.

1. the beginning step of ecological succession after an extreme disturbance
3. a living organism that shapes its environment.
4. a variable of a system that causes a noticeable change
5. a relationship in which both species are mutually benefited.
6. refers to the consideration of the biological, geological, and chemical aspects of each cycle.
8. a long-term biological interaction in which members of one species gain benefits while those of the other species neither benefit nor are harmed.
10. the natural home or environment of an animal, plant, or other organism.
13. plant or algae that can produce food for itself using the energy from the sun
14. consists of all the food chains in a single ecosystem.
15. an organism that cannot produce its own food
16. matter from recently living organisms which is used for bioenergy production.
17. the variety of all living things and their interactions.
18. harmful materials into the environment
20. The act of leaving a habitat or place with the intent of moving to a different habitat or place.
22. the increase in concentration of a substance
24. the maximum population size of a biological species that can be sustained by that specific environment
26. the secondary ecological succession of a plant's life.
30. an expanding and rich subfield of ecology