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Cell System Part 1
Term | Definition |
---|---|
Organism | A living thing |
Cell | The basic unit of stucture 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 the same way |
Response | An action or change or signal 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 organism's 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 |