Ecosystems and Biogeochemical Cycles

2. the position of an organism in the food chain
3. organisms that obtain energy by the oxidation of electron donors in their environment
6. a community of living organisms (plants, animals and microbes) in a particular area
7. all the living things in an ecosystem
11. process by which water is lost in the form of water vapour from the aerial parts of the plants
13. the process of turning from liquid into vapor
15. organisms that only eat plants
16. an organism that mostly eats meat, or the flesh of animals
18. the process by which green plants and other organisms transform light energy into chemical energy
20. organisms that consume dead and decaying organic matter known as detritus to obtain energy and nutrition

1. a non-living part of an ecosystem that shapes its environment
4. the process of breathing in oxygen and breathing out carbon dioxide
5. an organism that eats other plants or animals for energy and nutrients
8. a person or thing that eats or uses something
9. water released from clouds in the form of rain, freezing rain, sleet, snow, or hail
10. renewable organic material that comes from plants and animals
12. an organism that can produce its own food using light, water, carbon dioxide, or other chemicals
14. an organism that eats plants and animals
17. a model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem
19. a maker of something