Topic 2 Vocabulary

123456789101112131415161718192021
Across
  1. 4. the struggle between organisms to survive as they attempt to use the same limited resources in the same place at the same time
  2. 5. all the members of one species living in the same area
  3. 8. a diagram that shows the amount of energy that moves from one feeding level to another in a food web
  4. 12. the community of organism that live in a particular area, along with their nonliving environment
  5. 14. a type of symbiosis between two species in which one species benefits and the other species is neither helped nor harmed
  6. 17. an environmental factor that causes a population to decrease in size
  7. 18. a type of symbiosis in which both species benefit from living together
  8. 19. how an organism makes its living and interacts with the biotic and abiotic factors in its habitat
  9. 21. all the different populations that live together in a certain area
Down
  1. 1. a living thing
  2. 2. a living or once living part of an organism's habitat
  3. 3. the pattern of overlapping feeding relationships or food chains among the various organisms in an ecosystem
  4. 6. an organism that can make its own food
  5. 7. any relationship in which two species live closely together and that benefits at least one of the species
  6. 9. an organism that gets energy by breaking down biotic wastes and dead organisms and returns raw materials to the soil and water
  7. 10. a type of symbiosis in which one organism lives with, on, or in a host and harms it
  8. 11. an interaction in which one organism kills another for food or nutrients
  9. 13. the community of organisms that live in a particular area, along with their nonliving environment
  10. 15. a nonliving part of an organism's habitat
  11. 16. an environment that provides the things a specific organism needs to live, grow, and reproduce
  12. 20. an organism that obtains energy by feeing on other organisms