Evolution

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Across
  1. 1. A different or distinct form or version of something.
  2. 5. "Survival of the Fittest"
  3. 6. Process for determining the age of an object by the amount radioactive material it has.
  4. 7. to produce far more offspring than can survive
  5. 10. Body part in different species that is similar in function but not in structure
  6. 13. Any alteration in the structure or function of an organism.
  7. 15. An organ or bone that appears in different animals.
  8. 18. Set of all genes
  9. 19. An organ that has no function.
Down
  1. 2. The process of determining an approximate computed age.
  2. 3. Fossilized remains that shows traits common to both a ancestral group and descendant group
  3. 4. total number of fossils that have been discovered.
  4. 8. cellular organism that has no nuclear membrane
  5. 9. The time it takes for a radioactive substance to lose half its radioactivity.
  6. 10. Process of breeding to get desirable traits.
  7. 11. A group of organisms of one species.
  8. 12. Health and Well Being
  9. 14. The changing of the structure of a gene
  10. 16. an organism consisting of a cell
  11. 17. no longer in existence