Evolution

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Across
  1. 5. One Allele/Total Number of Alleles
  2. 7. Structures Features of different species that are similar in function but not necessarily in structure is ?
  3. 8. This is the process of species formation and has four main mechanism
  4. 9. Structures that develop from the same embryonic tissue are _______.
  5. 10. preserved remains of ancient organisms
  6. 12. What genetic drift occurs after an event greatly reduces the size of a population?
  7. 14. This genetic drift finds a new population
  8. 16. What decides if an organism survives and reproduces based on how well it adapts
  9. 17. Who helped Lyell discover that Earth was many years old
  10. 19. An example of this is a person breeding cows to fit their preference
  11. 20. An example of this is migration
Down
  1. 1. Scientest who formulated the theory of evolution based on natural selection
  2. 2. After fertilization
  3. 3. Before fertilization
  4. 4. In 1831, Darwin set sail from England aboard the H.M.S. Beagle for a voyage around the world.
  5. 6. arrangement of organisms ordered into groups based on similarities
  6. 11. The results of reproduction is_______.
  7. 13. Darwin noticed that these islands were different in 1835.
  8. 15. What is a structure that has lost all major function
  9. 18. Process of species adaptions over time