Across
- 4. process in which an organism becomes fitted for its environment
- 6. an event which alters the behavior and fitness of an organism
- 7. a unit of heredity transferred from parent to offspring
- 8. formation of new species over evolution
- 10. changing in the structure of a gene
Down
- 1. process by which heritable traits increase the chances of reproduction and survival
- 2. observable characteristics or traits
- 3. a distinguishing quality or characteristic
- 5. the genetic makeup of an organism
- 9. inability to breed successfully due to barriers or differences