Across
- 1. Joining a population
- 3. The growth of urban areas caused by people moving into cities.
- 4. The removal of trees and other vegetation from an area.
- 5. An environmental factor that prevents an organism or population from reaching its full potential of size or activity.
- 8. Pollution that comes from many sources rather than from a single specific site; an example is pollution that reaches a body of water from streets and storm sewers.
- 12. The process by which wind, water, ice, or gravity transports soil and sediment from one location to another.
- 14. An environmental factor that is associated with or results from the activities of living organisms.
- 15. Leaving a population
Down
- 2. A natural resource that humans use to make objects or to consume as food and drink.
- 4. An organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients.
- 6. A diagram used to show the flow of energy through an ecosystem.
- 7. A relationship between two species in which both species benefit.
- 9. Pollution that comes from a specific site.
- 10. A group of organisms that are closely related and can mate to produce fertile offspring.
- 11. A relationship between two organisms in which one organism benefits and the other is unaffected.
- 13. A diagram that shows the feeding relationships between organisms in an ecosystem.
- 16. An environmental factor that is not associated with the activities of living organisms.
