Evolution Vocab Practice

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Across
  1. 5. selection^a process by which the organisms with the best adaptations survive to pass on their genes to the next generation.
  2. 6. of Evolution^the best scientific explanation for both the unity and diversity of life; proposed by Charles Darwin
  3. 9. Product of reproduction, a new organism produced by one or more parents
  4. 13. a diagram showing the relationship between several species
  5. 15. the differences within a single species
  6. 16. Structures which are similar form among different species but may be used for different functions. Evidence of common ancestor. (ex: front limb bones of frog and horse).
  7. 17. inherited characteristic that increases an organism's chance of survival
  8. 18. A trace of an ancient organism that has been preserved in rock.
  9. 21. An organism in the earliest stage of development
  10. 22. capable of reproducing
  11. 23. Study of past and present distribution of organisms
  12. 25. a single species that gave rise two two or more different species.
Down
  1. 1. structures which were inherited from previous ancestors which are no longer as important or useful as they used to be (ex: the leg bone of a dolphin).
  2. 2. a "mistake" in the DNA that leads to variation in a species
  3. 3. of Acquired Characteristics^A now proven untrue theory of evolution proposed by Jean Babtiste Lamarck in which organisms pass on traits to their offspring that they acquired in their lifetime.
  4. 4. Offspring of crosses between parents with different species
  5. 7. Sturctures which have a similar function among several species but have an entirely different form (ex: bat wings and butterfly wings).
  6. 8. change in a population over time; process by which modern organisms have descended from ancient organisms
  7. 10. An individual being considered "alive."
  8. 11. formation of new species
  9. 12. selection a process by which the organisms with the best adaptations survive to pass on their genes to the next generation.
  10. 14. A characteristic of an organism that can vary within a population (ex:hair color).
  11. 19. group of similar organisms capable of interbreeding and producing fertile, healthy offspring
  12. 20. A group of living organisms within a species.
  13. 24. unable to reproduce