Taxonomy

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Across
  1. 6. The organisms in this kingdom have no cell walls, no chloroplasts, and are heterotrophs.
  2. 8. Anatomical structures in different organisms that are similar in structure, but different in function.
  3. 16. The domain to which there true bacteria belong.
  4. 17. The greater the number of _______ structures two organisms share, the more closely related they are thought to be.
  5. 18. This term refers to the structure of an organism.
  6. 21. A system of naming that assigns each organism a two part name (2 words).
  7. 24. This kingdom contains green, photosynthetic plants.
  8. 25. A method used to identify an organism. It presents users with two choices that will eventually lead to the identification (2 words).
  9. 27. Kingdom to which the true bacteria belong.
  10. 28. The original system of classification had only two domains. What third domain was added in the 1990s?
  11. 32. This kingdom contains bacteria such as strep and staph.
  12. 35. Visual that uses shared characteristics to show evolutionary relationships.
  13. 36. This kingdom contains heterotrophic organisms that possess cell walls made of chitin.
  14. 37. The fifth level of classification.
  15. 38. The third level of the classification system.
Down
  1. 1. These structures are reduced in size and seem to be “leftovers” from a previous ancestor.
  2. 2. This kingdom contains organisms that has both plant-like and animal-like characteristics.
  3. 3. Domain to which all organisms possessing cells with nuclei and membrane bound organelle belong.
  4. 4. All scientific names are written in this language.
  5. 5. The sixth level of the classification system.
  6. 7. Term meaning that a cell possesses a true nucleus and membrane bound organelles.
  7. 9. This part of the scientific name is always capitalized.
  8. 10. The number of levels of classification in the current system.
  9. 11. The evolutionary history of an organism.
  10. 12. Swedish naturalist who developed the classification system we use today (last name).
  11. 13. The broadest level of classification.
  12. 14. An organism, that is placed at the bottom of a phylogenic tree is the ________ of the organisms placed above it (2 words).
  13. 15. The scientist who proposed the Theory of Natural Selection (2 words).
  14. 19. Kingdom to which the very ancient and often extreme bacteria belong.
  15. 20. A phylum is divided into several ________.
  16. 22. The process by which organisms that are better adapted to their environment survive and reproduce more successfully than less well adapted individuals (2 words).
  17. 23. What cellular characteristic is shared by the true bacteria and the archaea bacteria?
  18. 26. The fourth level of the classification system.
  19. 29. Currently, scientists are using a classification system that consists of how many domains?
  20. 30. If two organisms can mate and produce fertile offspring, the are placed in the same ___________.
  21. 31. This part the scientific name is always written in lowercase letters.
  22. 33. This kingdom contains mushrooms and molds.
  23. 34. The branch of biology that classifies organism and assigns each organism a universally accepted name.