Across
- 3. Natural defense mechanism developed in the prey
- 7. Differential survival and reproduction of individuals due to differences in the phenotype
- 9. Structures with a common ancestor
- 13. Structures that have lost all or most of their function
- 14. Physical features of an organism that help it to survive and succeed in its environment
Down
- 1. Structures with similar functions
- 2. Response to a specific environmental stimuli
- 4. The change in which an organism becomes better suited to its environment
- 5. An individuals reproductive success
- 6. Change in the heritable traits of biological populations over successive generations
- 8. Random changes in gene frequency mainly in small populations
- 10. A genetic change that leads to different characteristics
- 11. The close external similarity of one animal to another
- 12. The movement from one habitat to another
- 15. selection A process in breeding in which the breeder chooses which animals breed together to get desirable traits