| A | B |
| adaptation | any characteristic of an organism that makes it better able to survive in its environment |
| biogenesis | the theory that living things come only from other living things |
| cell | the smallest unit of an organism that can perform life function |
| control | in an experiment, the standard for a comparison |
| development | all the changes undergone by living things as they grow |
| homeostasis | the regulation of steady, life-maintaining conditions inside an organism or cell, despite changes inits environment |
| hypothesis | a prediction that can be tested |
| law | a rule that descibes a pattern in nature in nature and what will happen happen under specific conditions |
| life span | the length of time an organism is expected to live |
| organism | a living thing that is made up of one or more cells, uses energy, moves, responds to it's environmnet, adjusts, reproduces, adapts, and has a lifespan |
| response | the reaction of a organism to a stimulous |
| scientific methods | problem solving procedures used by scientists; define the problem, make a hypothesis, test the hypothesis, analyze the results, draw conclusions |
| spontaneous generation | the theory that non-living thins produce living things |
| stimulus | anything an organism responds to such as sound, light, heat, vibration, odor, movement, hunger, thirst, and so on |
| technology | the use of scientific knowledge to improve the quality of human life or to solve problems |
| theory | an explanation based on many observations; subject to change when evidence changes |
| variable | in an experiment, the factor tested |