Evidence of Common Ancestry

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Across
  1. 5. comparing body parts of different species
  2. 7. The study of the distribution of organisms around the world
  3. 8. organs or structures that had a function in an early ancestor
Down
  1. 1. used to visualize the possible evolutionary relationships between organisms
  2. 2. body parts are similar in structure but different in function
  3. 3. Traces of once living organisms
  4. 4. The study of how animals grow and develop before birth
  5. 6. Comparisons between DNA nucleotide or Protein amino acid sequences are the best evidence of common ancestry