5.3 Ecological Communities

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Across
  1. 2. Most secondary and tertiary consumers are called _________
  2. 4. A food chain is a _____ series of feeding relationships
  3. 6. A species that has a strong and wide-reaching impact on the community
  4. 8. Most humans that eat meat and vegetables are considered ________
  5. 9. Most ______ consumers are herbivores
  6. 11. During photosynthesis, ______ is used to convert carbon dioxide and water into sugars
  7. 12. Where on Earth is energy stored in the bonds of hydrogen sulfide used to convert carbon dioxide and water into sugars through chemosynthesis?
  8. 13. a.k.a autotrophs, perform photosynthesis
  9. 15. ______ of a keystone species can alter a large portion of teh food web.
  10. 16. Primary producers always make up a communities ______ trophic level
  11. 18. The total amount of living tissue a trophic level contains
  12. 19. Each trophic level contains only about ___% of the energy of the level below it
Down
  1. 1. Consume leaf litter, waste products, and dead bodies
  2. 3. Due mainly to _____ _____ only a small amount of the energy consumed by an organism in one trophic level can be transferred to the next
  3. 5. The exact opposite of photosynthesis
  4. 7. Break nonliving matter into simpler parts that can be taken up and reused by primary producers
  5. 10. There are generally _____ organisms at higher trophic levels than at lower ones
  6. 14. Organisms that rely on other organisms for energy and nutrients
  7. 17. Shows the many paths by which energy and nutrients pass among organisms as they consume one another