Biodiversity, Populations, Food Webs (Unit 1)

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Across
  1. 1. where organisms are in a food chain.[trophic ___]
  2. 4. graphical representation of interlinked food chains that show how organisms are related through their food consumption in an ecosystem [food ____]
  3. 6. role of a species in an ecosystem
  4. 9. Another name for producers.
  5. 11. if 2 species occupy the same niche and habitat, they would end up competing with one another for the same food. [___________ exclusion]
  6. 12. a species that hold ecosystems together and are more important than other species.
  7. 15. number of species in a given area
  8. 18. coming to a place, population increases
  9. 20. a type of cascade that is indirect interactions that can affect entire ecosystems.
  10. 22. a group of organisms of a species that interbreed and live in the same place at the same time.
  11. 23. An organism that breaks down organic matter into simpler materials (like carbon dioxide)
Down
  1. 2. all the abiotic and biotic factors in an area
  2. 3. number of organisms in a species/ total number of organisms
  3. 5. leaving a place, population decreases
  4. 7. How individuals in a population are spread across an environment [population _______]
  5. 8. living factors of the environment
  6. 10. number of individuals of the same species in an area [population _____]
  7. 13. factors like resources in an environment that can lower the population growth.
  8. 14. the number of individuals that make up a population [population ____]
  9. 16. Another name for consumers.
  10. 17. measure of the variety of life that occurs within an ecosystem.
  11. 19. nonliving factors of the environment
  12. 21. an individual animal, plant, or single-celled life form.