| A | B |
|---|
| Natural Selection | changes that make organisms better suited to their environment |
| Adaptation | behaviors and physical characteristics of species that allow them to live successfully in their environment |
| Niche | an organisms role/job |
| Competition | struggle between organisms to survive in a habitat wtih limited resources |
| Predation | when one organism kills and east another organism |
| Symbiosis | relationship btwn. two species that benefits at least one of them |
| Mutualism | relationship in which both species benefit |
| Commensalism | relationship in which one species benefits and the other isn't helped/harmed |
| Parasitism | involves one organism living on or inside another, harms it |
