Download Ecology Review Crossword

Ecology Review Crossword
Name:____________________________________
Across
7. Feed on the waste of an ecosystem.
10. ________________ succession occurs when a community forms on exposed
rock with no topsoil.
12. All of the interacting populations in an area.
13. A stable, mature community.
15. A _____________ relationship is a close species interaction.
18. Photosynthesis, cell respiration, and the burning of fossil fuels are
important components of the ___________ cycle.
19. Competition that occurs when two raccoons fight for crabapples in KJ’s
backyard.
22. Both benefit.
23. Most abundant element in the atmosphere; needed for amino acids and
DNA.
25. Protects the planet from ultraviolet radiation.
28. Nitrogen-fixing bacteria are found in the root nodules of
_______________.
29. Makes own food usually by photosynthesis.
32. Portion of the planet where there is life.
33. The ___________ mass extinction on this planet is occurring now.
35. Warming of the planet due in part to the burning of fossil fuels (two
words).
36. Eats only plants.
37. Living part of the environment.
38. Phosphorous is a _________________ factor for producers in many
ecosystems.
39. Non-living part of the environment.
Down
1. How well an organism survives under certain circumstances describes it
range of __________________________.
2. Evaporation of water from plants and trees.
3. Another word for autotroph.
4. The addition of nitrogen to the atmosphere by soil bacteria.
5. The __________ level refers to an organism’s position on a food
pyramid.
6. Occurs when the niches of two or more organisms overlap.
8. Competition leads to natural selection and _________________.
9. Another word for heterotroph.
11. One benefits; one is harmed.
14. A greenhouse gas other than CO2.
16. When harmless organisms evolve to look like dangerous organisms.
17. One benefits; one is unaffected.
18. Autotrophic bacteria use this process to make food where there is no
sunlight.
20. Using a graph to predict future trends.
21. Succession that occurs after an event like Hurricane Katrina.
24. Eats plants and animals.
26. An organism’s role in the environment; includes habitat, behavior,
etc.
27. The mass of living material in an ecosystem.
30. Removing nitrogen from the atmosphere is called nitrogen
_______________________.
31. Another word for warning coloration.
34. Where an organism lives.