Evolution

7. Is well tested and has evidence that incorporates facts.
8. New species arise from common ancestors replacing less fit species.
12. The variety of life in the world or in a particular habitat or ecosystem.
13. _______ provide evidence of a continental drift.
14. Theory that continents once formed a single landmass, broke up, and drifted to their present locations
15. A(n) _____ trait decreases a species fitness for its environment.
16. _______ is a trait that is neither a disadvantage or advantage in terms of survival or reproduction.
17. Competition for food, mates, space, water is a struggle for ________.

1. Organisms that are better adapted to their environment have a greater likelihood of surviving t adulthood and passing on these characteristics to their offspring.
2. A process in which individuals that have certain inherited traits tend to survive and reproduce at higher rates than other individuals because of those traits.
3. The ability of an individual to survive and reproduce.
4. Differences of traits within a population is a __________ of traits.
5. A British naturalist, renowned for his theories of evolution and natural selection
6. An idea of belief which is not based on scientific fact or a misunderstanding of the facts.
9. Book written in 1859 about how a species evolved over time.
10. Descent with ________.
11. An external force in the species environment that makes a trait more favorable than another trait is a ________ force.