| A | B |
|---|
| cell structure & function | basic unit of life |
| homeostasis | maintaining an stable internal environment |
| reproduction | making more of your species |
| heredity | passing on of traits from parents to offspring |
| evolution | change in species over time |
| interdependence | reliance of organisms on other organisms and their environment |
| energy | all organisms need this to perform life functions |
| controlled experiment | tests only one factor at a time; uses control & experimental groups |
| variable | the factor that changes in an experiment |
| scientific method | steps used to investigate a problem or question |
| hypothesis | a proposed explanation that is testable |
| theory | an explanation that has been tested and confirmed many times |
