bio

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Across
  1. 3. The theory that evolution occurs slowly but steadily
  2. 5. the whole species is dead
  3. 7. Change in genetic material of a cell
  4. 9. A well tested concept that explains a wide range of observations
  5. 12. The process of selecting a few organism with desired traits to serve as parents of the next generation
  6. 13. A diagram that shows how scientists think different groups of organisms are related
  7. 14. a set of dna that makes a specific trait
  8. 15. A structure that is reduced in size and has little or no function.
Down
  1. 1. differences between the same species
  2. 2. The last shared common ancestor on the branching tree of evolution
  3. 4. A group of similar organisms that can mate with each other and produce fertile offspring
  4. 6. The more adapted something is to its environment the more likely it is to survive.
  5. 8. the remains of an organism that lived in the past
  6. 10. How well an organism can adapt and survive in its environment
  7. 11. A trait or novel process that helps and organism survive and reproduce