Across
- 5. inherited from ancestors but have lost much or all of their original function
- 7. the test by raising and breeding plants and animals
- 8. the process of change over time
- 10. many traits are controlled by two or more genes
- 11. consists of all the genes
- 12. the process by which organisms with variations most suited to their local environment survive and leave more offspring
- 13. structures that are shared by related species and that have been inherited from a common ancestor
- 15. preserved remains or traces of ancient organisms
Down
- 1. study of where organisms live now and where they lived and their ancestors
- 2. individuals at one end of the curve have higher fitness then individuals in the middle or at the other end
- 3. the number of times an allele
- 4. heritable characteristic that increases an organism's ability to survive and reproduce in its environment
- 6. a trait controlled by only one gene
- 9. body parts that share common function but not structure
- 14. describes how well an organism can survive and reproduce in its environment