Natural Selection Crossword

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Across
  1. 7. Physical appearance
  2. 8. Describes organs that are "leftover" and serves no evolutionary purpose
  3. 10. All living organisms are related to one another
  4. 11. Proposed a mechanism for evolution, natural selection
  5. 12. Genetic makeup
  6. 13. The ability to survive long enough to reproduce
Down
  1. 1. Step 2 of Darwin's theory of natural selection
  2. 2. Step 3 of Darwin's theory of natural selection
  3. 3. The type of evidence that suggests DNA with more similar sequences produce species that are more closely related
  4. 4. Step 4 of Darwin's theory of natural selection
  5. 5. Step 1 of Darwin's theory of natural selection
  6. 6. Describes similar anatomy in different types of animals because of common ancestor
  7. 9. embryos of all vertebrates are very similar early on