A3.2

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Across
  1. 2. A domain of single-celled organisms often found in extreme environments.
  2. 7. The highest taxonomic rank, consisting of Archaea, Bacteria, and Eukarya.
  3. 8. The technique of using mutation rates to estimate the time of evolutionary divergence.
  4. 10. A tree-like diagram showing the evolutionary relationships between species.
  5. 12. A method of classification based on shared characteristics and common ancestry.
  6. 14. The evolutionary history and relationships of a group of organisms.
  7. 15. The point on a cladogram where a single lineage splits into two.
  8. 16. segment of a cladogram that leads to a specific taxon (species or group) existing at the "tips" of the diagram.
  9. 18. An ancestral group of organisms that is shared by multiple lineages.
  10. 19. The organizational system of grouping taxa from most general to most specific.
Down
  1. 1. The plant family that was famously reclassified using cladistics.
  2. 3. Traits that are similar because they were inherited from a common ancestor.
  3. 4. The domain that includes all organisms with membrane-bound organelles.
  4. 5. Any unit used in biological classification, such as phylum or class.
  5. 6. The process of moving a species to a new taxon based on new genomic evidence.
  6. 9. The process where unrelated species evolve similar traits.
  7. 11. The science of classifying and naming organisms.
  8. 12. A group of organisms that evolved from a common ancestor.
  9. 13. Traits that are similar due to convergent evolution rather than shared ancestry.
  10. 17. The order of nucleotides or amino acids used to determine clades.