Evolution

5. this term refers to the variety of living things that inhabit the planet Earth vi
8. body structures that are similar in structure but not in function
10. an explanation that has been heavily tested and is supported by a large body of evidence
11. Darwin used this term to describe the ability of an individual to survive and reproduce in its specific environment
14. the process in which individuals with certain inherited traits leave more offspring that individuals with other traits
15. what was the name of the ship that Darwin sailed on
17. this is the principle that states that all living things are derived from a common ancestor

1. a heritable change in the characteristics of a population from one generation to the next
2. Darwin used this phrase to indicated that there was intense competition for limited resources among the members of a population
3. the selective breeding of organisms by humans for certain desirable traits
4. a heritable change in the characteristics within a population from one generation to the next
6. the preserved remains of ancient animals
7. this provides the most powerful evidence for evolution
9. a method of breeding that allows only certain organisms with desirable characteristics to mate and produce offspring
12. during Darwin's voyage around the world a stop in these islands proved to be the most influential of all on Darwins' developing theory
13. this scientist contributed more to our understanding of evolutionary theory than any other
16. structures that serve no purpose in a living organism,