Across
- 4. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
- 5. Change over time
- 6. any event that changes genetic structure
- 7. A biologist who developed theory of evolution of species (1859). He argued that all living species evolved into their present form through the ability to adapt in a struggle for survival.
- 8. A structural adaptation that enables an organism to blend in with its environment
- 9. Ability of an organism to survive and reproduce in its environment
- 11. a condition of the environment that affects how suitable it is for a living thing
- 12. Differences in traits among individual organisms within a population
Down
- 1. an adaptation an animal does that helps it survive; a response to live
- 2. an adaptation that is a change to an individual's body structure that helps it survive and reproduce
- 3. The variety of different types of genes in a species or population.
- 10. A trait that helps an organism survive and reproduce in its environment
