Natural Selection

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Across
  1. 2. selection / the process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species
  2. 4. / any difference between individuals of the same species
  3. 5. / disappearance of a species from all parts of its geographical range
  4. 8. / a group of organisms of the same species populating a given area
  5. 9. / the preserved trace, imprint, or remains of a plant or animal
Down
  1. 1. / the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth
  2. 3. / any genetic variation that makes an organism better suited to its environment
  3. 6. Darwin / English natural scientist who formulated a theory of evolution by natural selection (1809-1882)
  4. 7. / group of similar organisms that can breed and produce fertile offspring