Evolution and Natural Selection Vocab

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Across
  1. 3. A living thing (page 28).
  2. 5. A tree-like diagram that shows evolutionary relationships.
  3. 11. When a population becomes divided by an event (273)
  4. 12. Another word for variety (page 259).
  5. 13. Process by which organisms with favorable adaptations survive and reproduce.
  6. 15. When genes change. Can be helpful or hurtful and contributes to variation (272).
Down
  1. 1. Famous scientist who wrote "On the Origin of Species"
  2. 2. A remnant or trace of an organism from the past.
  3. 4. Islands where Darwin made his most important observations.
  4. 6. An inherited trait that helps an organism survive.
  5. 7. The process of how organisms acquire adaptations over time.
  6. 8. Animals with a backbone.
  7. 9. When the environment changes and adaptations are no longer good for survival.
  8. 10. Things that have a common origin but do not perform the same function.
  9. 14. An organism from which others have descended.