Across
- 2. body cells, have a nucleus
- 4. genetic drift will more harshly affect _____ populations
- 6. change in allele frequencies due to chance
- 10. characteristics of organisms that enhance their survival and reproduction in specific environments
- 15. picking out animals with specific traits and breeding them to get the most desirable offspring
- 17. when a population has little genetic mixing with other organisms of the same species
- 18. determining the age of fossils based on where they are located in sedimentary rocks
- 21. asexual reproduction
- 22. the children/young of an organism
- 23. a change in heritable traits over time
Down
- 1. bacteria, do not have a nucleus
- 3. used to determine the exact age of fossils
- 5. sexual reproduction
- 7. coded information,chain-like chemical stored in cells
- 8. "against life"
- 9. organelle that generates energy for the cell
- 11. survival of the fittest
- 12. differences between individuals between a species
- 13. genes that can be masked by dominant genes
- 14. genes that CANNOT be masked
- 16. using oxygen
- 19. the study of embryos and their development
- 20. preserved remains of an organism