Natural Selecgion Crossword

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Across
  1. 1. organisms with similar enough genes to be able to produce fertile offspring.
  2. 5. The process whereby organisms better adapted to their environment tend to survive and produce more offspring.
  3. 7. Remains of an organism preserved in rock formations.
  4. 8. Change or error in DNA.
Down
  1. 2. Developed the theory of evolution.
  2. 3. Organisms that no longer exist.
  3. 4. Pattern of nucleotides that encode for an organism.
  4. 6. Theory of how new species develop.