Ecology puzzle

3. Succession community is impacted by a disturbance.
5. the practice of living as a parasite in or on another organism.
6. an organism that produces organic compounds
7. a group of living things in the same place or having a particular characteristic in common.
9. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
11. certain traits give an adaptive advantage to organisms and they leave behind more offspring
15. symbiosis that is beneficial to both organisms involved.
16. the layers of gasses surrounding a planet or other celestial body
17. the regions of the surface, atmosphere, and hydrosphere of the earth.
19. a group of people living in the same place or having a particular characteristic in common.
20. a key for the identification of organisms based on a series of choices between alternative characters.

1. One organism benefits, one unharmed
2. source pollution runoff from rain and snowmelt carries pollutants into waterways such as rivers, streams, lakes, wetlands, and even groundwater.
4. web a system of food chains.
5. Succession type of ecological succession
8. a single identifiable source of air, water, thermal, noise.
10. an organism that derives the organic compounds and energy it needs from the consumption of other organisms
12. physical rather than biological; not derived from living organisms.
13. species that is non-native
14. a biological community of interacting organisms and their physical environment.
18. relating to or resulting from living things, especially in their ecological relations.