Across
- 2. Physical characteristics of an organism
- 4. Any inherited characteristic that increases an organism's chance of survival
- 6. Change in a DNA sequence that affects genetic information
- 9. Ability of an individual to survive and reproduce in its specific environment
- 10. A gradual change in a species over time
Down
- 1. Genetic makeup of an organism
- 3. occurs usually when species compete for resources, and environments change; sometimes occurs through natural selection
- 5. Father of evolution
- 7. A well supported testable explanation of observations that have happened in the natural world
- 8. The preserved remains of ancient organisms