| A | B |
|---|
| Evolution | a general term, means "change over time" |
| Gene | a sequence of DNA that codes for a particular trait |
| Mutations | changes in DNA |
| Genetic Drift | biological evolution that occurs by chance |
| Natural Selection | the process by which traits that improve an organism's chances for survival and reproduction are passed on more frequently to future generations than those that do not |
| Fitness | how reproductively successful an organism is in its environment |
| Adaptation | a heritable trait that increases an individual's fitness |
| Artificial Selection | a human-controlled process to produce individuals with certain traits |
| Speciation | the process by which new species are generated |
| Extinction | the disappearance of a species from Earth |
| Niche | an organisms habitat, resource use, and fundamental role in a community |
| Tolerance | the ability to survive and reproduce under changing environmental conditions |
| Resource Partitioning | a process that allows different species to share common resources |
| Predation | the process by which an individual of one species, a predator, hunts, captures, kills, and consumes an individual of another species, the prey |
| Coevolution | the process by which two species evolve in response to changes in each other |
| Parasitism | is a relationship in which one organism,the parasite, depends on another, the host, for nourishment or some other benefit |
| Symbiosis | a long lasting and physical close relationship in which |
| Herbivory | the act of feeding on a plant |
| Mutualism | a relationship between two organisms from different species in which both organisms benefit |
| Commensalism | a relationsgip between two organisms from different species in which one benefits and the other is unaffected |
