| A | B |
|---|
| Biology | the study of life |
| sexual reproduction | creating new organisms from two parents |
| asexual reproduction | creating a organism from one parent |
| spontaneous generation | life arising from non-living substances |
| theory | evidence from numerous investigations that lead to the same conclusion |
| cell | the basic unit of life |
| homeostasis | keeping everything balanced |
| metabolism | the sum of all chemical reactions in an organism |
| evolution | a change in a species over many generations |
| stimulus | a signal to which an organism responds |
| independent variable | the variable that is changed by the researcher |
| dependent variable | factor that changes due to manipulation of other variables |
| science | an organized way of using evidence to learn about the natural world |
| data | information gathered in an experiment |
| hypothesis | a testable prediction |
