When cells in an organism associate with each other, they form tissue.
What is a cell?
Cells are the smallest, structural, and functional unit of life. It is the building block of an organism.
A tissue is a group of cells that have identical structures and that function together as a unit. When a number of cells in an organism associate with one another, they form tissues.
Therefore, when cells in an organism associate with each other, they form tissue.
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