Ecosystems

4. a non-living part of an ecosystem that shapes its environment
5. changes to biophysical environments and to ecosystems, biodiversity, and natural resources caused directly or indirectly by humans
7. the introduction of harmful materials into the environment
8. water released from clouds in the form of rain, freezing rain, sleet, snow, or hail
10. an area of tall, mostly evergreen trees and a high amount of rainfall
12. organism that breaks down dead organic material

1. Human actions however often disrupt the biotic and abiotic factors of an ecosystem
2. Individuals from all of the populations form the community
3. a living organism that shapes its environment
6. an area of land permanently saturated, or filled, with water
7. Together, all of the individuals of a single species in
9. precipitation that does not soak into the soil but instead moves on the Earth's surface toward streams
11. all of the living organisms that share a region and interact with each other