| A | B |
| Biology | the scientific study of life |
| Heterotroph | An organism that is unable to make its own food to meet their energy needs |
| Autotroph | An organism that is able to make its own food to meet their energy needs |
| Theory(scientific) | An explanation of an observable phenomena based on data and guided by scientific laws |
| Law | A generalization of a body of observations. It explains but does not describe them |
| Hypothesis | A proposed, scientifically testable explanation for an observed phenomenon |
| Homeostasis | The regulatory process in which an organism regulates its internal environment |
| cell | The basic unit of a structure and function for all living organisms. |
| Prokaryote | A single celled organism that lacks a membrane bound nucleus and specialized organelles |
| Eukaryote | A type of organism composed of one or more cells containing a membrane-bound nucleus, specialized organelles in the cytosol and a mitotic nuclear division cycle |