science
Across
- 6. A nonliving part of an organism's habitat.
- 8. An environment that provides the things a specific organism needs to live, grow, and reproduce.
- 9. A living or once-living part of an organism's habitat.
- 12. An organism that can make its own food.
- 14. An organism that gets energy by breaking down biotic wastes and dead organisms, and returns raw materials to the soil and water.
Down
- 1. All the different populations that live together in an area.
- 2. All the members of one species living in the same area.
- 3. a living thing
- 4. An environmental factor that causes a population to decrease in size.
- 5. The community of organisms that live in a particular area, along with their nonliving environment.
- 7. A series of events in an ecosystem in which organisms transfer energy by eating and by being eaten.
- 10. An organism that obtains energy by feeding on other organisms.
- 11. A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
- 13. The pattern of overlapping feeding relationships or food chains among the various organisms in an ecosystem.