| A | B |
|---|
| aquaculture | Raising fish in an artificial pond |
| DNA | structure in an organism's cells that carries genetic information |
| endangered | could become extinct |
| poaching | hunting wildlife illegally |
| keystone species | species that influences the survival of many others in an ecosystem |
| habitat destruction | leading cause of species extinction |
| renewable resources | resources that replaced naturally |
| environmental science | Study of natural processes that occur in the environment and how humans can affect them. |
| Selective cutting | A means of logging that is less damagin to habitat |
| biodiversity | The number of different species in an area. |
