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Human Body
| Term | Definition |
|---|---|
| Tissue | a group of similar cells that perform the same function |
| Organ | a structure that is composed of different kinds of tissue |
| Organ system | a group of organs that work together to perform a major function |
| homeostasis | the body's tendency to keep an internal balance |
| stress | the reaction of your body to potentially threatening, challenge or disturbing events |