Evolution Crossword Puzzle

12345678910111213141516171819202122
Across
  1. 4. ________ nomenclature
  2. 5. structures that are similar in unrelated organisms
  3. 7. influence of closely related species on each other
  4. 10. organic compounds occurring in foods and living tissues that must include sugars, salts, and cellulars
  5. 13. process where organisms not closely related independently evolve similar traits
  6. 14. the ingestion of bacteria
  7. 15. organism that grows without air
  8. 16. the classification of organisms
  9. 17. the process whereby organisms better adapted to their environment tend to better survive
  10. 19. nitrogenous organic compounds composed of amino acids
  11. 20. an organism's ability to survive and reproduce
  12. 21. changing of a structure of a gene resulting in a variant form that may be transmitted to future generations
  13. 22. is also known as gene migration or allele flow
Down
  1. 1. preserved impression/remains of a prehistoric organism
  2. 2. believes organelles in eukaryotic cells were once prokaryotic micros
  3. 3. skeletal elements of organisms that suggest a connection to a common ancestor
  4. 6. may occur as a response to changes in abiotic factors
  5. 8. feature of behavior that no longer seems to have a purpose
  6. 9. the identification by humans of desirable traits in the plants and animals
  7. 11. live on earth originated from microorganisms
  8. 12. _________ equilibrium
  9. 18. organic compounds that are fatty acids