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Across 2. Principle that stands for genetic equilibrium 4. Inherited structures that are reduced or non-functional features in one species as compared to similiar functional structures found in another species. 8. Cummulative changes in groups of organisms through time 9. Random movement of individuals between populations 10. Adaptations that allow them to blend in with the environment 11. Technology that can manipulate DNA in order to insert DNA of another organism 13. Structures that are similiar in structure and can be used for the same purpose, but were not inherited from a common ancestor 14. One species evolves to resemble another species 15. Newly evolved features; do not appear in ancestral forms 16. Survival of the fightest 17. Evidence of species that lived long ago; indicates evolutionary change 18. Unspecialized cells that can develop into specialized cells

Down 1. Directed breeding to produce offspring with desired traits 3. Random but permanent change in a cell's DNA; can cause harm or death; can provide an advantage to an organism 5. The use of genetic engineering to find solutions to problems 6. Vestigial structure found in humans. 7. Primitive features that do appear in ancestral forms 11. Genetic changes in a population that occur from chance 12. Anatomically similar structures inherited from a common ancestor