AP Biology : Ecology

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Across
  1. 3. Why a behavior occurs
  2. 6. Nonliving factor
  3. 7. Developmentally fixed behaviors
  4. 12. Pattern of spacing among individuals in a population
  5. 14. Stimulus generated and transmitted from one animal to another
  6. 16. Abbreviation for the total primary production in an ecosystem
  7. 17. How a behvior occurs
  8. 19. Directional movement towards or away from stimulus
  9. 20. An animal's response to a stimulus
  10. 21. The total amount of energy an animal uses in a unit of time
Down
  1. 1. Living factor
  2. 2. A group of individuals of the same species living in an area
  3. 4. Random movement in response to a stimulus
  4. 5. Long-lasting behavioral response to an individual
  5. 8. Organism that cannot make its own food
  6. 9. All the living and nonliving things in an area
  7. 10. Selection for life history traits that are sensitive to population density (no hyphen)
  8. 11. Number of individuals per unit area
  9. 12. Organisms that get energy from detritus
  10. 13. Selection for life history traits that maximize reproductive success (no hyphen)
  11. 15. Abbreviation for the Gross Primary Product minus the energy used by primary producers
  12. 18. Behaviors that depend on environmental influence