Cornerstone of Biology

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Across
  1. 2. remains of organisms that once lived
  2. 7. choosing a mate based on higher fitness
  3. 8. organisms that are best suited for their environment
  4. 9. how well an organism can survive
  5. 10. change in DNA
Down
  1. 1. bones that are the same shape/place in different species
  2. 3. how fossils are organized according to time
  3. 4. random chance that alleles are lost to a population
  4. 5. man who came up with the idea of natural selection
  5. 6. new alleles that enter the population