Across
- 2. structures have different mature forms in different organisms but have same embryonic tissues
- 3. organisms better suited for environment, survival of the fittest
- 6. organ that serves no function
- 9. ability for organism to survive and reproduce
- 10. change of an organism over time
Down
- 1. selection by humans for breeding useful traits amount organisms
- 4. all living things were derived form common ancestors
- 5. well tested explanation
- 7. inherited characteristic for better chance of survival
- 8. preserved remains