tacology

2. all of the living and nonliving things that interact in an area
4. all the members of one species living in an area
7. an environmental factor that is not alive, never lived, and was not part of something living
9. larger particles allow it to drain quickly. sandy soils dries out quickly
11. a close relationship between species that benefits at least one of the species
12. one living thing
13. one species benefits, the other is neither helped or harmed
16. eats plants
17. - recycles dead organisms and waste -examples molds, mushrooms, and some bacteria
18. smaller tightly packed particles keep it from draining quickly
20. all of the different populations living in an area (no abiotic factors)
21. eats both plants and animals

1. both species benefit from the relationship
3. a cycle using photosynthesis by plants and respiration by animals
5. one species benefits, and the other is harmed in some way
6. eats dead animals
8. eats meat
10. the variety of life (or species) on earth
14. how an ecosystem changes over time
15. being dependent on others for some needs, being mutually dependent on others
19. mix sand soil drown plants because it absorbs so much water