Crossword puzzle

1. heterotrophs that obtain nutrients by consuming detritus
6. an organism that produces organic compounds from simple substances such as water and carbon dioxide
8. the total quantity or weight of organisms in a given area or volume
10. rain, snow, sleet, or hail that falls to the ground
11. relating to or resulting from living things
12. power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines
13. the conversion of a vapor or gas to a liquid
15. a biological community of interacting organisms and their physical environment
17. an animal or person that eats food of both plant and animal origin
18. an animal that feeds on plants
19. plankton consisting of microscopic plants

1. an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material
2. is an organism that feeds on primary producers
3. animal that obtains its nutrition by eating primary consumers and secondary consumers
4. organisms that eat primary consumers for energy
5. an animal that feeds on flesh
7. the process of turning from liquid into vapor
9. not derived from living organisms
14. the evaporation of water from plants
16. an organism that derives the organic compounds and energy it needs from the consumption of other organisms