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cell system part 1
| Term | Definition |
|---|---|
| Organism | A living thing |
| Cell | The basic unit of structure and function in living things |
| Unicellular | Made of a single cell |
| Multicellular | Consisting of many cells |
| Stimulus | Any change or signal in the environment that can make an organism react in some way |
| Response | An action or change in behavior that occurs as a result of stimulus |
| Spontaneous generation | The mistaken idea that living things arise from nonliving sources |
| Homeostasis | The condition in which an organisms internal environment is kept stable in spite of changes in the external environment |
| characteristics | a feature that helps to identify something |
| microscope | an instrument that makes small objects look larger |
| cell theory | a widely accepted explanation of the relationship between cells and living things |
| distinguish | 1) to manage to recognize something you can barely see 2) to point out a difference |
| growth | size or stage of development |
| hand lens | a magnifying glass designed to be held in the hand |
| magnification | to increase the apparent size of an object |
| reproduce | to reproduce its kind, as in an organism; bear offspring |
| energy | the ability to do work or cause change |
| waste | anything left over or not of use |