Ecology

2. Interconnected food chains in a community.
4. Living part of a habitat.
5. An organisms total way of life.
8. Primary productivity rate at which producers in an ecosystem carry on photosynthesis to make carbohydrates.
10. A long period of inactive where organisms survive unfavorable environmental conditions.
11. Broadest level of organization including all life on earth.
14. Cycle Includes precipitation, evaporation, and transpiration.
15. Organisms that change their internal conditions with the external environment.
17. Feed only on plants.
18. Break down dead organisms and recycle the organic molecules.
19. Process where nitrogen is returned to the atmosphere.
24. Water loss from the leaves of plants.
25. Includes the pH, humidity, gases, salinity, sunlight, and soil in an area.
26. An organisms position in a sequence of energy transfers.
27. The ability of organisms to survive within a limited range of environmental conditions.
31. The ability of an organism to adjust its tolerance level to abiotic factors.
32. Photosynthesis and cellular respiration make up this cycle.
33. Burning these has increased the amount of carbon dioxide in the atmosphere.
34. Fixation Process where certain bacteria change nitrogen gas into nitrates in the soil.
35. Several populations of organisms living together in an area.

1. Seasonal movement of animals to more favorable habitat.
3. Feed on both plants and animals.
6. The study of the interactions between organisms and the living and nonliving parts of the environment.
7. Single pathway of feeding relationships
9. A group of one species of organism living in an area.
12. Cycle that occurs mainly through the soil, plants, and animal wastes.
13. Example of decomposers.
15. Bacteria that use inorganic substances instead of sunlight to make carbohydrates.
16. Equals the gross primary productivity minus the respiration rate of producers.
20. Organisms interacting with each other and their environment.
21. The amount of energy available to the next trophic level in an energy pyramid.
22. Feed only on other animals.
23. Autotrophs that capture sunlight and use it to make organic molecules.
28. A single living thing.
29. Place where a plant or animal lives.
30. Several Communities of organisms living in an area with similar environmental conditions.