Unit 6

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Across
  1. 1. selection where individuals in the center of the curve have higher fitness
  2. 4. proposed a theory that tried to explain how organisms suddenly disappear from the fossil record
  3. 6. selection where individuals at one end of the curve have higher fitness
  4. 9. proposed the idea that if you do not use a body part, it will not be passed on to offspring
  5. 10. proposed the idea that the earth must be very, very old because mountain formation takes a long time
  6. 12. known as the father of taxonomy
Down
  1. 2. all of the alleles in the population
  2. 3. type of selection where humans decide who will breed
  3. 5. organisms change over time
  4. 7. proposed the Theory of Uniformitarianism
  5. 8. type of selection where nature selects for certain traits
  6. 11. sailed on the Beagle and studied animals on the Galapagos islands