science

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