| A | B |
|---|
| evolution | changes that occur over time in a species |
| mutation | any permanent change in the genetic material (DNA) of a cell |
| species | organisms whose members are alike and successfully reproduce among themselves |
| population | organisms of one species living in the same place at the same time |
| fitness | when an organism can survive and produce viable offspring |
| viable offspring | offspring that can then go on to reproduce themselves |
| natural selection | Darwin's theory that organisms with traits that are well-suited to their environment will survive and pass on their traits |
| LaMarck | believed in theory of acquired characteristics |
