| A | B |
|---|
| Biology | The study of life. |
| organism | Anything that demonstrates all the characteristics of life. |
| adaptation | Any structure, behavior, or internal process that enables an organism to better survive in an environment. |
| stimulus | A change in the environment that requires an orgainsm to adjust. |
| response | A reaction to a stimulus. |
| reproduction | The production of offspring. |
| species | A group of organisms that can interbreed and produce fertile offspring. |
| homeostasis | Regulation of an organism's internal environment. |
| energy | The ability to do work. |
| hypothesis | An explanation for a question or problem that can be formally tested. |
