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Extended exposure to salon products without proper precautions can affect all of the following epithelial tissues EXCEPT:

  1. Cartilage

  2. Epidermis

  3. Hair follicles

  4. Nail bed

The correct answer is: Cartilage

Extended exposure to salon products without proper precautions can affect the epidermis, hair follicles, and nail bed because these tissues are directly exposed to the products. However, cartilage is not considered an epithelial tissue and is not directly exposed to salon products. Therefore, it is not affected by the extended exposure.