vocabulary

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Across
  1. 2. all the inhabitants of a particular town, area, or country.
  2. 5. an association between two organisms in which one benefits and the other derives neither benefit nor harm.
  3. 6. the dependence of two or more people or things on each other.
  4. 9. a non-living part of an ecosystem that shapes its environment
  5. 10. the process of working together to the same end.
  6. 12. the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.
  7. 13. the area and resources used by a particular species (the habitat of a species) or an assemblage of animals and plants together with their abiotic environment.
  8. 14. an animal that naturally preys on others.
  9. 17. interaction between two different organisms living in close physical association, typically to the advantage of both.
  10. 20. the practice of living as a parasite in or on another organism.
  11. 23. an animal or person that eats food of both plant and animal origin.
  12. 26. the doctrine that mutual dependence is necessary to social well-being.
  13. 27. an organism that mostly eats meat, or the flesh of animals.
  14. 28. a large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra.
  15. 29. an animal that feeds on plants
  16. 30. any kind of green plant
Down
  1. 1. a hierarchical series of organisms each dependent on the next as a source of food.
  2. 3. the role an organism plays in a community.
  3. 4. the activity or condition of competing.
  4. 7. a group of people living in the same place or having a particular characteristic in common."the scientific community"
  5. 8. organism on the food chain that depends on autotrophs (producers) or other consumers for food, nutrition, and energy
  6. 11. a biological community of interacting organisms and their physical environment.
  7. 15. organism that breaks down dead organic material
  8. 16. the ability to do work
  9. 18. a living organism that shapes its environment
  10. 19. a group of organisms that can reproduce with one another in nature and produce fertile offspring.
  11. 21. a system of interlocking and interdependent food chains.
  12. 22. the regions of the surface, atmosphere, and hydrosphere of the earth (or analogous parts of other planets) occupied by living organisms.
  13. 24. the preying of one animal on others
  14. 25. an animal that is caught and killed by another for food.