Change Over Time

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Across
  1. 5. involves small changes that add up to major changes over a long period of time
  2. 8. species that evolve during a short period of time of rapid change and then dont change much
  3. 11. lizards with long legs can run fast and avoid preditors
  4. 12. a trait that increases an organisms ability to survive and reproduce
  5. 13. the process of change over time
  6. 14. the preserved remains or traces of an organism that lived in the past
  7. 15. the identification by humans of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations
Down
  1. 1. similar structures that are related species have inherited from a common ancestor
  2. 2. a well-tested concept that explains a wide range of observations
  3. 3. darwin first studied species here
  4. 4. a group of similar organisms that can mate with each other and produce fertile offspring
  5. 6. hypothesized that species change over many generations and become better adapted to new conditions
  6. 7. any difference between individuals of the same species
  7. 9. how many organisms can mate and produce fertile offspring with members of the same species
  8. 10. the process by which individuals that are better adapted to their environment are more likely to survive and reproduce more than other members of the same species