Organisms in the Environment

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Across
  1. 3. Organisms that make complex, energy-containing biomolecules from simple inorganic molecules using energy captured from light or inorganic chemical compounds.
  2. 7. A single, linear path showing the flow of energy from the sun to producer and through different levels of consumers.
  3. 8. More than one individual or population in an ecosystem relies upon the same limited resources.
  4. 11. Rainfall and surface water that drains or flows from the land into streams, rivers, lakes, or the ocean.
  5. 13. An environmental change that happens quickly but does not last a long time.
  6. 15. The position an organism occupies on the food web.
  7. 16. Organisms that consume only plants.
  8. 19. Animals that eat other animals that eat plants
  9. 21. An organism that must consume other organisms for nutrients.
Down
  1. 1. An organism that gets their energy by feeding on producers in the food chain.
  2. 2. A man-made, underwater structure that promotes the growth of reef-dwelling aquatic organisms.
  3. 4. The permanent disappearance of a species from the Earth.
  4. 5. Environmental change that occurs slowly over time and affects organisms over generations.
  5. 6. A diagram that shows the trophic levels of organisms in a food web.
  6. 9. A species that enters an area from somewhere else and disrupts the native ecosystem.
  7. 10. Organisms such as bacteria and fungi that break down the remains of dead plants and animals without need for internal digestion.
  8. 12. Animals that eat other animals.
  9. 14. Overlapping food chains with different pathways for the flow of food energy in an ecosystem.
  10. 17. A long-term change in the prevailing environmental conditions in a part of the Earth
  11. 18. Animals that eat secondary consumers.
  12. 20. Taking more fish out of an ecosystem than can be replaced by the reproductive rates of the remaining populations.