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Apico-basolateral Cell Polarity 

Epithelial cells

Epithelial cells make up the linings of many animal organs. They act as barriers, preventing pathogens and other molecules from freely entering the bloodstream. They also act as transporters, directing the movement of specific molecules across tissues and aiding in the  elimination of waste. Epithelial cells also provide mechanical support to organs. 

Caenorhabditis elegans

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