Evolution

4. A pace of evolution with slow and steady progress.
6. The Theory of _________ Characteristics claims that use & disuse of characteristics can influence an organism's genetics.
8. Genetic ______ is a random change in the genetic makeup of a population.
12. A structure that no longer serves a purpose or serves a different purpose in a modern species compared to the original function.
14. _____________ Effect is when a population size sharply decreases.
15. One species evolves into two or more species.
18. Gene _____ is the collective alleles in a population; all genes present in a population.
21. ___________ Selection is when the most fit organisms survive & reproduce.
22. ___________ structures are a set of similar structures in different species that indicate a recent common ancestor.

1. Comparison of proteins and DNA sequences for relatedness.
2. A type of selection where the intermediate phenotype has the highest fitness.
3. Main contributor to the Theory of Evolution by Natural Selection.
5. The study of anatomical and structural elements of an organism.
6. __________ Radiation describes a species migrating to a new location and leading to the rapid development of multiple new species.
7. A specific role a species has in an ecosystem.
9. A type of selection where two extremes of a phenotype are better than the intermediate.
10. _____________ Effect is when a small portion of a population goes to a new location to create a new population.
11. A type of selection that favors one phenotype.
13. The study of early, embryo development of organisms to establish evolutionary relationships.
16. Punctuated ___________ describes a cycle with periods of rapid change and periods of no change.
17. Gene _____ is the movement of alleles into or out of a population.
19. ___________ structures are a set of different structures in different species that serve a similar function (ex: wings in multiple species).
20. The scientist whose theory of use & disuse hs been disproven.