4th Quater Summery

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Across
  1. 4. describes an area of land that contains a common set of streams and rivers
  2. 6. is composed of rapidly growing large brown algae.
  3. 7. a close prolonged association between two or more different species
  4. 8. A group of various species in a shared location
  5. 9. a amount of people in a area
  6. 15. Or moving abroad
  7. 16. deals with the relation of organisms to one another
  8. 17. the average population size in a habitat
  9. 18. A place where organisms live
  10. 20. a principal taxonomic category that ranks above species
  11. 22. a body of water where rivers and streams mixes with salt water in the ocean
  12. 24. is made up of the parts of Earth where life exists
  13. 25. an animal that feeds on dead organic material
  14. 26. a community of many plants and animals
  15. 27. a open water area where light barely shows
  16. 28. A specific physical region or amino acid sequence in a protein
  17. 31. an organism that can produce its own food
  18. 33. interdependent food chains
  19. 34. A way an organism lives
  20. 35. a zone that is the deepest layer of ocean closest to the sea floor
Down
  1. 1. organisms that occupy the same or similar ecological niches
  2. 2. A process by which microbes create food using released from chemical reaction
  3. 3. Another name for microalgae
  4. 5. the study of living organisms
  5. 10. any living thing
  6. 11. is a relationship between two animals that benefit from each other without being harmed.
  7. 12. a living organism that shapes its environment.
  8. 13. includes the waters and biological communities living in the water column
  9. 14. an organism that helps define an entire ecosystem
  10. 19. This is a very dry biome
  11. 21. This biome is mainly in North America
  12. 23. one organisms that kills and eats the other
  13. 29. a group of microorganisms that are similar
  14. 30. capable of being decomposed by bacteria or other living organisms.
  15. 32. A biome in the arctic
  16. 36. species that require very unique resources