| Term | Definition |
|---|
| organism | a living thing |
| the process and change that occurs during an organism's life to produce a more complex organism | development |
| the basic unit of structure and function in living things | cell |
| a change in an organism's surroundings that causes the organism to react | stimulus |
| an action or change in behavior that occurs as a result of stimulus | response |
| 4 characteristics of living organisms | use energy, reproduce, grow and develop, and cellular organization |
| variable | any factor that can change in an experiment |
| controlled experiment | an experiment in which all the variables except one remain the same |
| spontaneous generation | the mistaken idea that living things arise from non-living sources |
| 4 needs for organisms to stay alive | water, energy, living space, stable internal conditions |
| autotrophs | an organism that makes its own food |
| homeostasis | the process by which an organism's internal environment is kept stable in spite of the changes in the external environment |
| heterotrophs | an organism that cannot make its own food |
| compound microscope | two or more elements that are chemically combined |
| stereoscopic microscope | used for viewing whole objects |
Combine with other sets
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