Evolution

2. A change in the genetic makeup of species over time
4. Immunity Immunity that is passed down from the mother and is short lived
5. evolution When many species develop from a common ancestor
6. Drift The change in frequency of alleles in a population
8. The accumulation of differences between species or populations
9. Structures Structures that have the same function, but different structure
10. The process by which a species becomes better suited to its environment
12. When two or more organisms in an ecosystem evolve in response to each other
14. When a species permanently disappears
15. Flow The exchange of genes between two populations
16. Selection The process in which organisms with traits well suited to an environment are more likely to survive and to produce offspring

1. Evolution When unrelated species develop similar characteristics
3. The process by which new species form
7. Isolation The inability of formerly interbreeding groups to mate or produce fertile offspring
11. Structures that share a common ancestry or are similar in structure but different in function
13. Structures with no function that are remnants of an organism's evolutionary past
17. Immunity Immunity acquired when an immune response occurs in the human body