| A | B |
|---|
| science | a way of investigating the world and observing nature in order to form general rules about what causes thing to happen |
| biology | study of living things |
| gene | segment of DNA that codes for a trait |
| hypothesis | a testable explanation for an observation |
| prediction | expected outcome if a hypothesis is proved to be accurate |
| experiment | the controlled test of a hypotheis |
| control experiment | a comparison of an experimental group with a control group |
| control group | the group not exposed to the test condition |
| theory | explanation of several phenomena based on hypotheses that have been tested many times |
| cell | smallest unit that can perform all life processes |
| homeostasis | tendency to maintain stability in an organism amid environmental change |
| development | process of growth and cell specialization |
| heredity | transmission of genetic information from parent to offspring |
| mutation | abrupt change in genotype of an organism |
| evolution | genetic change in a species over time |
| natural selection | process by which organisms best suited to their environmental conditions are most likely to survive and reproduce |
| species | a group of organisms that can interbreed with each other but not with memebers of any other group |
