Human skin color is determined by the interaction of melanin, carotene and hemoglobin. Storage of water, fat, glucose and vitamin D is also a function of the integumentary system, according to the AAD.
1 ExcelTest HSPT Courses offer an intensive program with 12 classes of 3 hours each over 4 - 5 weeks. 2  ExcelTest Courses offer unique and extremely effective strategies not taught anywhere else, by highly experienced, dynamic instructors.
Architects: All 12 hours must be HSW subjects. A list of HSW subjects is in the Continuing Education rules. Landscape Architects: Of the total 24 hour requirement, 16 hours must be Health, safety, and welfare (HSW). A complete list of HSW topics is located in the Continuing Education rules. Self-reported activities for not accepted