Ecology

1. must eat something for energy
2. eats plants
4. is made of: weathered rock, minerals, humus, water and air
6. makes its own food
7. larger particles allow it to drain quickly
9. made by plants
12. a close relationship between species that benefits at least one of the species
13. mix and sand, clay, and silt
15. the variety of life on earth
16. one species benefits, the other is harmed in some way
17. eats dead animals
19. one living thing
20. an environmental factor that is not alive, never lived, and was not part of something living
21. recycles dead organisms and waste
22. both species benefit from the relationship
24. all of the different populations living in a area only biotic factors

1. eats meat
3. all of the living and nonliving things that interact in an area
5. eats both plants and meat
6. all the members of one species living in an area
8. made by animals
10. being dependent on others for some needs, being mutually dependent on each other
11. living or once living or made by something that was alive
14. one species benefits, the other is neither helped nor harmed
18. smaller particles keep it from draining quickly
23. provides the energy for food chains