Chapter 20 AP Bio Review

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Across
  1. 1. proposal that prokaryotes evolved from eukaryotes
  2. 6. proposal that prokaryotes acquired a nucleus first, and then the mitochondrion
  3. 7. system of two-part scientific names for an organism, which includes genus and species names
  4. 8. diagram used to reflect the evolutionary relationships among organisms or groups of organisms
  5. 9. the simplest, most straightforward way of constructing phylogenetic and evolutionary relationships between organisms
  6. 15. science of classifying organisms
  7. 16. bacteriophage-like particle that transfers random genomic segments from one species of prokaryote to another
  8. 17. visual representations of evolutionary relationships between organisms
  9. 21. hierarchical system of classifying organisms
  10. 22. division of kingdom in the taxonomic classification system
  11. 27. single ancestral lineage on a phylogenetic tree to which all organisms represented in the diagram relate
  12. 28. proposal that prokaryotes acquired a mitochondrion first, followed by nuclear development
  13. 30. two lineages that diverged from the same branch point
  14. 31. field of organizing and classifying organisms based on evolutionary relationships
  15. 33. division of phylum in the taxonomic classification system
  16. 34. branch on a phylogenetic tree with more than two groups or taxa
  17. 35. division of class in the taxonomic classification system
Down
  1. 2. transfer of genes between unrelated species
  2. 3. phylogenetic model that attempts to incorporate the effects of horizontal gene transfer on evolution
  3. 4. technique using molecular evidence to identify phylogenetic relationships
  4. 5. node on a phylogenetic tree where a single lineage splits into distinct new ones
  5. 10. applying the simplest, most obvious way with the least number of steps
  6. 11. describes a characteristic on a phylogenetic tree that is shared by all organisms on the tree
  7. 12. describes a characteristic on a phylogenetic tree that is shared only by a certain clade of organisms
  8. 13. division of family in the taxonomic classification system; the first part of the binomial scientific name
  9. 14. fusion of two prokaryotic genomes, presumably by endosymbiosis
  10. 18. phylogenetic model where all three domains of life evolved from a pool of primitive prokaryotes
  11. 19. single level in the taxonomic classification system
  12. 20. branch on a phylogenetic tree that has not diverged significantly from the root ancestor
  13. 23. division of order in the taxonomic classification system
  14. 24. organisms that share a single ancestor
  15. 25. evolutionary history and relationship of an organism or group of organisms
  16. 26. system used to organize homologous traits to describe phylogenies
  17. 29. division of domain in the taxonomic classification system
  18. 32. characteristic that is similar between organisms by convergent evolution, not due to the same evolutionary path