Evolution and Classification

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Across
  1. 3. change over time; the process by which modern organisms have descended from ancient organisms
  2. 5. preserved remains or traces of ancient organisms
  3. 6. largest and most inclusive group in classification
  4. 9. in classification, a group of closely related classes
  5. 12. in classification, a group of similar genera
  6. 13. system of naming and classifying organisms based on shared characteristics and universal rules
  7. 17. body parts that share a common function, but not structure
  8. 18. study of evolutionary relationships among organisms
  9. 19. in classification, a group of closely related orders
Down
  1. 1. structures that are similar in different species of common ancestry
  2. 2. classification system in which each species is assigned a two-part scientific name
  3. 4. structure that is inherited from ancestors but has lost much or all of its original function
  4. 7. process by which organisms that are most suited to their environment survive and reproduce most successfully; also called survival of the fittest
  5. 8. heritable characteristic that increases an organism's ability to survive and reproduce in an environment
  6. 10. the study of past and present distribution of organisms
  7. 11. how well an organism can survive and reproduce in its environment
  8. 14. group of closely related species; the first part of the scientific name in binomial nomenclature
  9. 15. diagram depicting patterns of shared characteristics among species
  10. 16. in classification, a group of closely related families