ECOLOGY CROSSWORD

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Across
  1. 3. The place in which an organism lives out its life (address)
  2. 6. Shows all possible feeding relationships in a community at each trophic level.
  3. 10. Photosynthesis and respiration cycle carbon and oxygen through the environment.
  4. 12. An animal which feeds on dead organic material.
  5. 14. A temporary change in environmental conditions that causes a pronounced change in an ecosystem
  6. 17. a state within a community of organisms in which genetic, species and ecosystem diversity remain relatively stable, subject to gradual changes through natural succession.
  7. 19. Show the transfer of energy from the bottom of the pyramid through several levels of consumers toward the top of the pyramid.
  8. 20. Several interacting populations that inhabit a common environment.
  9. 21. Nonliving parts of the environment (i.e. temperature, soil, light, moisture, air currents
  10. 22. An organism that causes ecological or economic harm in a new environment where it is not a native of.
  11. 23. One specifies benefits and the other is neither harmed nor helped ex. Orchids on a tree.
  12. 24. All primary producers (plant), they trap energy from the sun. They are at the bottom of the food chain.
Down
  1. 1. All living organisms inhabiting the Earth.
  2. 2. Organism that eats plants.
  3. 3. All consumers. They ingest food containing the sun’s energy.
  4. 4. Simple model that shows how matter and energy move through an ecosystem
  5. 5. Animals that eat the meat/flesh of other animals.
  6. 7. Breakdown the complex compounds of dead and decaying plants and animals into simpler molecules that can be absorbed.
  7. 8. Ability to cause some kind of change. Can take many different forms ex. Light, heat and electrical energy.
  8. 9. Loss or removal of nitrogen or nitrogen compounds. Reduction of nitrates and nitrites commonly by bacteria (as in soil) that usually results in the escape of nitrogen into the air.
  9. 11. Final stage of succession, remaining relatively unchanged until destroyed by an event such as fire, or human interference.
  10. 13. Populations in a community and the abiotic factors with which they interact (ex. Marine, terrestrial)
  11. 15. Number of species and abundance of each species that live in an environment.
  12. 16. The amount of organic matter comprising a group of organisms in a habitat.
  13. 18. The branch of biology that deals with the relations of organisms to one another and to their environment.