Natural Selection

3. Organs Differing structures with similar functions and do NOT come from a common ancestor
5. Organ the organs with no current function and are considered to be the extra parts from past ancestors.
7. Drift mechanism of evolution that causes a change in the gene pool of a population randomly
10. Evidence The DNA of different species shows that they developed from common ancestors
12. Evolution occurs when two separate species evolve differently from a common ancestor
14. Genetics genetic differences within and among populations
15. Darwin an English scientist who studied nature, he is known for his theory of evolution by natural selection
16. Flow the movement of genes from one population to another population

1. Anatomy the study of species’ structures is similar and different
2. Organs Similar structures with differing functions that come from a common ancestor
4. the study of how species are distributed
6. The process of genetic change over time
8. The study of the embryo's formation and development
9. Evolution occurs when organisms that are not closely related evolve similar features or behaviors, often as solutions to the same problems
11. Selection The process that lets some members of a population survive and reproduce more than others
13. Record a collection of fossils that document the history of life on Earth