A tissue is a level of organization that is the intermediate of a cell and organ. A group of cells that are not necessarily identical but work together as an assemblage are organized into tissues. Tissues are grouped into four basic types and they are the epithelial, connective, nervous and muscle(note that for muscle we have the skeletal, smooth and cardiac muscle tissue) tissue. These tissues associate and interact with each other to form organs that carry out specialized functions.The following is a diagram illustrating the various tissue types in the body:
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