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science vocab
| Term | Definition |
|---|---|
| Homeostasis | the maintenance of a constant internal state in a changing environment. |
| cell | the basic unit of structure and function of a living thing. |
| Tissues | made of the same type of cells grouped together to do a specific job. |
| Organs | made up of different tissues that work together to do a job. |
| organ system | a group of organs working together |