Evolution Vocab

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