Changes Over Time

12345678910
Across
  1. 2. the process of change overtime
  2. 3. the preserved remains of traces of an organism that lived in the past
  3. 5. any difference between individuals of the same species
  4. 7. a trait that increases an organism's ability to survive and reproduce
  5. 9. a pattern in which species evolve during short periods of rapid change and then don't change much
  6. 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
Down
  1. 1. similar structures that related species have inherited from a common ancestor
  2. 4. a well-tested concept that explains a wide range of observations
  3. 6. a group of similar organisms that can mate with each other and produce fertile offspring
  4. 8. small changes that add up to major changes over a long period of time