text: This organ primarily derives from the endoderm, specifically the ventral side.
full_question: This organ primarily derives from the endoderm, specifically the ventral side. However, certain cells from the neural crest eventually migrate into this organ and give rise to its characteristic colors. Elevated levels of corticosteroids have been implicated in striae development in this organ. When this organ repairs itself with an overgrowth of granulation tissues, keloids may develop from excessive collagen. The linea nigra that often develops in pregnant women comes from placental hormones that stimulate melanocytes in this organ. For 10 points what organ in humans is covered in hair follicles and is composed of the dermis and epidermis?
first_sentence: This organ primarily derives from the endoderm, specifically the ventral side.