Zeylene

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Across
  1. 2. Unrelated species evolve similar characteristics
  2. 5. The process of biological chnage that makes decendants differ from their ancestors
  3. 6. New enviroments caused them to envolve to be different
  4. 9. Some organisms will survive and reproduce better than others
  5. 13. The study of prehistoric life
  6. 18. When a Catastrophic event changes the enviroment
  7. 19. Traits that aren't necessarily good for survival fitness
  8. 20. Populations can show variations on different islands
  9. 21. Occurs at a slow rate
  10. 22. The remains of a once-living organism and/or its behaviour.
  11. 23. When slow changes over a long period of time
  12. 26. A change in gene frequency over time
  13. 27. Any change in the DNA sequence of a cell.
Down
  1. 1. Some sort of isolation must occur
  2. 3. Remnants of structures that has functions in ancestors
  3. 4. organisms change to eachother forming an relationsip
  4. 7. The importance of embryonic development of organisms
  5. 8. Same structure different function
  6. 10. The study of the chemical process in organisms
  7. 11. A group of living organisms consisting of similar individuals capable of exchanging genes
  8. 12. A combination of all the genes/alleles in a reproducing population or species.
  9. 14. A feature that allows an organisms to better survive in its enviroment
  10. 15. Lots of change b periods of stability
  11. 16. The importance of the structures of organisms
  12. 17. Similar function different structure
  13. 24. Movement of genes in/out of a population
  14. 25. A community of interbreeding members that involve animals, plants, or humans