Across
- 3. the study of the molecular basis of genes and gene expression; molecular genetics
- 5. the chronicle of evolution over millions of years of geologic time engraved in the order in which fossils appear in rock strata
- 7. the study of the formation, early growth, and development of different organisms
- 8. occurs when natural selection produces changes in the relative frequencies of alleles in a population’s gene pool
- 9. a group whose members possess similar anatomical characteristics and have the ability to interbreed
- 13. differential success in reproduction by different phenotypes resulting from interactions with the environment.
- 15. the study of the body structures in different organisms
- 16. the study of past and present distribution of species
Down
- 1. the study of genetic changes in populations; the science of microevolutionary changes in populations.
- 2. structures that are similar in different species of common ancestry
- 4. selective breeding of domesticated plants and animals to promote the occurrence of desirable inherited traits in offspring
- 6. an inherited characteristic that enhances an organism’s ability to survive and reproduce in a particular environment
- 10. a comprehensive theory of evolution that incorporates genetics and includes most of Darwin’s ideas, focusing on populations as the fundamental units of evolution
- 11. a group of interacting individuals belonging to one species and living in the same geographic area
- 12. a scientist who studies fossils
- 14. layers of sedimentary rock that were formed as sediments of sand and mud were compressed into rock by overlying deposits.