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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 a 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 eternal environment |
| characteristics | a feature that helps to identify something |
| microscope | an instrument that makes small objects look small |
| cell theory | a widely accepted explanation of the relationship between the cell and living things |
| distinguish | 1.to manage to recognize something you can barely see 2. to point out a difference |
| growth | size or stage 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 in use |