Across
- 4. all the members of one species living in an area
- 6. one species benefits, the other is harmed in some way
- 8. made up of weathered rock, minerals, humus, water, and air
- 9. larger particles allow it to drain quickly
- 10. eats dead animals
- 11. one species benefits, the other is neither helped or harmed
- 13. the variety of life on Earth
- 14. all of the living and nonliving things that interact in an area
- 15. a mix of clay, sand, and silt
- 16. provides the energy for food chains
- 17. smaller particles keep it from draining quickly
Down
- 1. makes its own food
- 2. a close relationship between species that benefits at least one of the species
- 3. show the amount of energy that moves from one energy level to the next
- 5. one living thing
- 7. all of the living and nonliving things that interact in an area
- 8. how an ecosystem changes over time
- 11. must eat something for energy
- 12. both species benefit from the relationship
- 13. living or once living