| A | B |
|---|
| ADAPTATION | physical or behavioral trait that helps and organism survive and reproduce in a specific environment |
| SPECIES | a group of organisms that can mate and produce fertile offspring |
| EVOLUTION | change over time |
| FOSSILS | trace remains of an organisms, mostly found in sedimentary rock |
| FOSSIL RECORD | historical sequence of live found in rock layers of the Earth's crust |
| SELECTIVE BREEDING | the human practice of breeding animals or plants for specific traits |
| NATURAL SELECTION | process where organsisms that are better adapted to their environment live and reproduce more successfully than less well adapted organisms |
| GENERATION TIME | the average amount of time between sets of offspring |
| SPECIATION | the formation of an new organsims due to evolution |
| DARWIN | the individual who developed the theory or natural selction |
| OVERPRODUCTION, INHERITED VARIATION, STRUGGLE TO SURVIVE, REPRODUCTION | the steps of natural selection |
