VOCAB

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Across
  1. 2. that is inherited from ancestors but has lost much or all of its original function
  2. 6. the formation of new and distinct species
  3. 7. -
  4. 8. physical separation from the same species
  5. 10. a predating isolating mechanism
  6. 12. that has the same function but different construction and was not inherited from a common ancestor
  7. 15. better suited to their environment
  8. 17. structure -
  9. 19. occurs when dif population mate at dif time
  10. 21. Change in a kind of organism over time
  11. 22. structure -
  12. 23. a unit of heredity that is transferred from parent
Down
  1. 1. physical separation
  2. 3. two or more palpitations or an ancestral species
  3. 4. improves an individual’s ability
  4. 5. selection by humans
  5. 9. physical barrier
  6. 11. process resulting in evolution
  7. 13. change in dna
  8. 14. preserved remains or traces of organisms that once lived on Earth.
  9. 16. structure -
  10. 18. ability of an organism
  11. 20. in different species that are similar because of common ancestry.