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  • 1. Tight junctions. bind cells together in such a way that no material can pass through the intercellular spaces. Epithelial cells are held together by tight junctions.

    2. Desmosomes: These bind the cells together like rivets. They let material pass through the intracellular spaces.

    3. Gap Junctions: They connect cells but allow material to pass from one cell to another through the opening in the center of the joint. They are analogous to the plasmodesmata in plants.

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