Across
- 5. a genetically determined condition or characteristic
- 10. variation among organisms that make them the best adapted for their environment
- 11. type of bird that Charles Darwin studied
- 13. where DNA is found
Down
- 1. a new organism that is the product of reproduction
- 2. a behavior that an organism does to survive
- 3. any individual living thing
- 4. naturalist that studied on islands
- 6. all the living and nonliving things that surround an organism
- 7. a characteristic or property of an organism
- 8. smallest unit of life
- 9. a physical feature that an animal has to help it survive
- 12. change in an organism's DNA