Unit 7 Populations

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Across
  1. 1. Something that inhibits population growth that is living; EX: competition, predation, symbiosis
  2. 4. the action of a predator chasing, capturing and consuming its prey
  3. 8. movement of individuals out of a population
  4. 11. Growth pattern in which a population's growth rate slows or stops following a period of exponential growth
  5. 13. refers to a population that has no density dependent limiting factors affecting its population growth
  6. 14. the maximum number of organisms of one species supported by an environment
  7. 20. term used to describe the rate at which plants and other photosynthetic organisms produce organic compounds in an ecosystem.
  8. 21. variable that is manipulated or changed
  9. 22. something in the environment that slows population growth by increasing deaths or decreasing births
  10. 23. describes a predator-prey population graph; as prey increases, predator populations increase and as prey decreases, a drop in predator population occurs
  11. 24. the number of individuals in a specific size of area, measure of crowding; 20 rabbits per acre
Down
  1. 2. Something that inhibits population growth that is nonliving; temperature, weather, natural disasters, amount of water
  2. 3. indirect effects in a community that are initiated by a predator
  3. 5. individuals of a species leaving or entering a habitat; immigration vs. emigration
  4. 6. a species that has an unusually large effect on its ecosystem
  5. 7. Movement of individuals into a population
  6. 9. growth curve shape of a population growth that is exponential; as the population size gets larger it grows faster
  7. 10. type of competition between members of the same species
  8. 12. change in total number of individuals in an area of the same species; determined by number of births minus number of deaths
  9. 15. type of competition between members of different species
  10. 16. The measurable effect, outcome, or response in which the research is interested.
  11. 17. growth curve shape of a population growth that begins with exponential growth and then levels off to fluctuate around carrying capacity
  12. 18. Population growth that is unhindered because of the abundance of resources for an ever-increasing population.
  13. 19. the number/variety of different species found in an area