Ecology Crossword Puzzle

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Across
  1. 3. the number of one species in a single area
  2. 5. organism that breaks down dead organic material
  3. 6. a non-native species whose introduc- tion does or is likely to cause economic or environmental harm or harm to human, animal, or plant health
  4. 11. organism on the food chain that depends on autotrophs (producers) or other consumers for food, nutrition, and energy
  5. 17. process by which the mix of species and habitat in an area changes over time.
  6. 18. the amount of species a ecosystem can support
  7. 21. an environment where an organism lives throughout the year or for shorter periods of time to find a mate
  8. 23. a non-living part of an ecosystem that shapes its environment
  9. 24. an organism that feeds mostly on plants.
  10. 25. all of the food chains in an ecosystem
Down
  1. 1. an organism (such as an earthworm or a fungus) that feeds on dead and decomposing organic matter.
  2. 2. a bear is an example of this
  3. 4. anything that constrains a population's size and slows or stops it from growing
  4. 7. group of organisms linked in order of the food they eat, from producers to consumers, and from prey, predators, scavengers, and decomposers.
  5. 8. the natural world around us, and the variety of all of the different kinds of organisms - the plants, animals, insects and microorganisms that live on our planet
  6. 9. a type of symbiotic relationship where all species involved benefit from their interactions.
  7. 10. lions are examples of
  8. 12. the role an organism plays in a community.
  9. 13. a living organism that shapes its environment
  10. 14. an organism which produces its own food through photosynthesis.
  11. 15. a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.
  12. 16. the study of organisms and how they interact with the environment around them.
  13. 19. a group of interacting organisms that may be of the same species or not as long as they share a common habitat
  14. 20. the position a species occupies on the food chain
  15. 22. the killing by one living organism of another for food.