natural selection vocab

1234567891011121314
Across
  1. 3. He found the theory of natural selection
  2. 5. The same version of something but adapted to its enviorments.
  3. 7. recently discovered transitional fossil
  4. 8. A similar structure that related species have
  5. 10. still in existence
  6. 12. A type of bird that is found on islands
  7. 14. When a species survives and is able to pass down its genes.
Down
  1. 1. A way to see how old minerals are.
  2. 2. Different types of species
  3. 4. Changing your structure of genes.
  4. 6. A trace of a animal in the crust of earth.
  5. 9. the change in characteristics over time
  6. 11. the dying out or extermination of a species
  7. 13. When a species become adapted to its enviorment