ECOLOGY POPULATIONS AND ENERGY ROLES

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Across
  1. 3. the variety of organisms at all levels, from populations to ecosystem.
  2. 5. all the members of one species living in a particular area
  3. 6. this type of a consumer eats secondary and primary consumers in an ecosystem
  4. 7. when an individual moves OUT of the population
  5. 10. organisms that are able to make their own food using energy from the sun
  6. 12. the maximum population size of a species that can be sustained by that specific environment, given the resources available
  7. 15. organisms that are not able to make their own food. They need to get their energy consuming other organisms
  8. 16. A diagram that shows the feeding relationships among organisms in an ecosystem
  9. 17. the environment that provides the things that an organism needs to live, grow, and reproduce
  10. 18. Arrows in a food chain represent the direction of the _________ from organism to organism
  11. 21. when an individual moves INTO the population
Down
  1. 1. a consumer that eats only plants
  2. 2. environmental factors that cause a population to stop increasing or to decrease in size
  3. 4. A diagram that shows the amount of energy that moves from one feeding level to another in a food web
  4. 8. the position of an organism in the food chain or energy pyramid.
  5. 9. Organisms that get energy by breaking down biotic wastes and dead organisms and returning the raw materials to the environment
  6. 11. these organisms are also known as autotrophs. They are the starting point of food webs and food chains
  7. 13. nonliving parts of an organism’s habitat
  8. 14. A diagram that shows the flow of energy from organism to organism in an ecosystem
  9. 19. The study of how organisms interact with one another and with the environment
  10. 20. a living or once living part of an organism’s habitat