Across
- 5. organisms with the best traits live longer and pass traits to offspring
- 6. traits that can be passed from one generation to next
- 7. the process of biological change by which descendants come to differ genetically from their ancestors
- 8. large scale evolution affecting changes in species across populations
Down
- 1. measure of how well an organism can survive in its environment
- 2. evolution ocurring on a small scale; affects single populaion
- 3. inherited characteristic that increases on organism's chances of survival
- 4. differences in the physical traits of organisms