Evolution

4. The ability of an organism to survive and reproduce.
7. A trait that helps an organism survive and reproduce in its environment.
10. Differences in traits among individuals in a species.
11. Change in the characteristics of a species over time.
12. _____________ selection is the selection that favors the average phenotype and removes extreme phenotypes.

1. _____________ selection is the selection that favors one extreme phenotype.
2. _____________ selection is the selection that favors both extreme phenotypes and selects against the average phenotype.
3. The formation of a new species.
5. A random change in DNA.
6. The process in which organisms with favorable traits survive and reproduce more.
8. An earlier organism from which other organisms evolved.
9. A characteristic of an organism.