kyle evolution crossword

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Across
  1. 3. the formation of new and distinct species
  2. 6. a change that helps an organism to be better suited for the environment
  3. 11. new species from old species
  4. 14. structures that are similar in function but they are not from the same ancestor
  5. 18. the movement of genes into and out of the population i.e. migration
  6. 20. a biological structure that has lost a major ancestral function i.e. useless
  7. 21. all the possible genes in s certain population
  8. 24. the study of living matter
  9. 25. slow elimination of a population an example if this is climate change
  10. 26. a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding
  11. 27. biological change that causes descendants to be different from there ancestors
  12. 28. reproduction based on preference not random
Down
  1. 1. bursts of change followed by a long period of stability
  2. 2. study of the body to prove evolution is occurring
  3. 4. geographical distribution of plants and animals
  4. 5. slow changes over a long period of time
  5. 7. the idea that species change over time give rise to new species and share a common ancestor
  6. 8. all the inhabitants of a certain area
  7. 9. the study of embryos of species to find related species that descend from the same ancestor
  8. 10. species sharing a common ancestry become more distinct
  9. 12. organisms change due to the environment
  10. 13. structures that are similar but perform a different task based on environment
  11. 15. two organisms that evolve to depend on one another
  12. 16. the remains of prehistoric organisms
  13. 17. the changing of the structure of a gene
  14. 19. when different species have similar characteristics
  15. 22. the study of prehistoric species
  16. 23. a catastrophic event that causes sudden change in the environment