Chapter 2

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Across
  1. 3. _______ factors; the nonliving factors in an organism's environment
  2. 6. a relationship between two or more organisms that live closely together and benefit from each other
  3. 7. an organism that gets it's energy requirements from consuming other organisms
  4. 8. a relationship where one organism benefits at the expense of another
  5. 9. the act of one organism consuming an other organism for food
  6. 11. a role or position that an organism has in its environment
Down
  1. 1. where an organism lives
  2. 2. _________ cycle; the exchange of matter through the biosphere
  3. 4. the close relationship that forms when two or more species live together
  4. 5. an organism that collects energy from sunlight or inorganic substances to produce food
  5. 10. ________ fixation; the process of capturing and converting nitrogen into a form that is usable by plants