Levels of organization terms and definitions
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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Cell | The basic unit of structure and function in living things
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Structure | An organism’s body plan, or the way its parts are arranged
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Function | The job or process that an organism’s structure carries out
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Nucleus | The control center of the cell that directs the cells’ activities and determines the cell’s characteristics
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Tissue | A group of similar cells that perform a specific function in an organism
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Organ | A structure in the body that is composed of different kinds of tissue
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Organ system | A group of organs that work together to perform a major function in the body
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Homeostasis | The process by which an organism’s internal environment is kept stable in spite of changes in the external environment
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Stimulus | A change in an organism’s surroundings that causes the organism to react
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Response | An action or change in behavior that occurs as the result of a stimulus
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Stress | The reaction of a person's body and mind to threatening, challenging, or disturbing events
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4 Levels of Organization in the body | Cell, Tissue, Organ, Organ System
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Created by:
bmercer
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