General Biology/Tissues
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[edit] Vertebrate tissues
Definition of tissue: an aggregation of cells, usually of the same kind, organized to perform a common function. A group of similar cells organized into a structural and functional unit (Raven/Johnson). Primary categories of adult tissues (non-dogmatic categories of convenience):
- Epithelial tissue
- Connective tissue Includes bone and blood tissues
- Muscle tissue
- Nervous tissue
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