click below
click below
Normal Size Small Size show me how
Biology Sec. 2
| Term | Definition |
|---|---|
| domains | the major subdivisions of all organisms |
| kingdoms | a system of grouping that divides all life into six major categories |
| ecology | the branch of biology that studies organisms interacting with each other and with the environment |
| ecosystems | communities of living species and their physical environments |
| evolution | descent with modification |
| natural selection | the process by which individuals that are better adapted to the environment survive and reproduce more successfully than less well adapted individuals do |
| adaptations | traits that improve an individuals ability to survive and reproduce |