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