Genetics Crossword Puzzle

2. structures feature of behavior that no longer seems to have a purpose
3. flow also known as gene migration or allele flow
5. organic compounds occurring in foods and living tissues that must include sugars, salts, and cellulars
10. an organism's ability to survive and reproduce
11. the ingestion of bacteria
12. equilibrium hypothesis that evolutionary development marked by isolated episodes of rapid speciation between long periods of little or no change
13. preserved impression/remains of a prehistoric organism
14. organic compounds that are fatty acids
15. nitrogenous organic compounds composed of amino acids
16. selection the process whereby organisms better adapted to their environment tend to better survive
17. nomenclature two terms used to denote a species of living organisms
18. organism that grows without air
21. structures skeletal elements of organisms that suggest a connection to a common ancestor

1. changing of a structure of a gene resulting in a variant form that may be transmitted to future generations
4. theory believes organelles in eukaryotic cells were once prokaryotic micros
6. evolution may occur as a response to changes in abiotic factors
7. selection the identification by humans of desirable traits in the plants and animals
8. influence of closely related species on each other
9. evolution process where organisms not closely related independently evolve similar traits
12. live on earth originated from microorganisms
19. structures that are similar in unrelated organisms
20. the classification of organisms