Chapter 5 Section 1 Vocabulary

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Across
  1. 1. the degree in which an organisms can reproduce successful in its environment
  2. 4. ______ Selection a human controlled process of passing on traits
  3. 6. a change in the DNA
  4. 7. a sequence of DNA
  5. 9. disappearance of a species
Down
  1. 2. change over time
  2. 3. heritable trait that increases the likely hood of survival and reproduction
  3. 5. _____ Drift evolution that occurs by chance
  4. 8. _____Selection traits that improve an organisms chance for survival are passed on from one generation to the next