| A | B |
| cystic fibrosis | genetic dissorder in which excessive ammounts of mucus are secreted, blocking intestinal and bronchial ductsand causing difficulty in breathing. |
| experiment | test of a hypothesis in which data are gathered under controlled conditions |
| heredity | transmission of genetic traits from parent to offspring |
| homeostasis | maintanance of the internal stability of a cell, organism, or population in its enviornment |
| hypothesis | proposed explanation |
| observation | info. that is known from being seen or experienced directly |
| prediction | the expected outcome if a hypothesis is correct |
| theory | explanation based on a hypothesis that has been tested many times |