Ecology

2. Globally significant ecological patterns created by sustained interactions between humans and ecosystems
3. the regions of the surface, atmosphere, and hydrosphere of the earth occupied by organisms
5. a non-living part of an ecosystem that shapes its environment
6. when the biological accumulation in each organism is compounded
10. a system that includes all living organisms in an area as well as its physical environment
13. the purposeful clearing of forested land
15. Long-term shifts in temperatures and weather patterns
16. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings
17. group of actually or potentially interacting species living in the same location
18. an introduced organism that becomes overpopulated and harms its new environment

1. a living organism that shapes its environment
4. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
7. all the rocks that make up Earth, from the partially melted rock under the crust, to ancient, towering mountains, to grains of sand on a beach
8. a layer in the earth's stratosphere at an altitude of about 6.2 miles containing a high concentration of ozone
9. the cultivation of a single crop in a given area
10. The total area of land required to sustain an activity or population
11. a substance that pollutes something, especially water or the atmosphere
12. a layer of gases surrounding the earth
14. fog or haze combined with smoke and other atmospheric pollutants
19. A population is the total number of individuals of a given biological species found in one place at one time