Evolution Vocab

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Across
  1. 2. individuals in a population differ from one another.
  2. 4. when populations produce more offspring than can survive.
  3. 8. cumulative changes in groups of organisms through time.
  4. 9. directed breeding to produce plants and animals with desired traits
  5. 10. variations are inherited from parents.
  6. 11. Darwin’s term for the selective breeding of organisms selected for certain traits in order to produce offspring having those traits.
Down
  1. 1. inherited characteristics of a species that develops over time in response to an environmental factor, enabling the species to survive
  2. 3. some variations allow the organism that possesses them to have more offspring that the organism that does not possess them.
  3. 5. theory of evolution developed by Darwin, based on four ideas: excess reproduction, variation, inheritance, and the advantages of specific traits in an environment.
  4. 6. visited the Galapagos on the beagle and developed the theory of evolution by natural selection.
  5. 7. explanation of a natural phenomenon based on many observations and investigations over time.
  6. 12. a measure of the relative contribution that an individual trait makes to the next generation.