Evolutionary History Vocabulary

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Across
  1. 3. The remains of an organism that lived a long time ago
  2. 5. Removed from existence
  3. 6. The structure of a living thing
  4. 7. Changes that happen over time in the gene pool
  5. 9. Occurring or going in order of time
Down
  1. 1. Body parts that are the same function but different structure
  2. 2. Type of rock formed when layers of sediment are pressed together
  3. 4. Ancestral organism shared by two or more descendent lineages
  4. 5. Unborn animal in the early stages of development
  5. 8. Same physical feature but different function