Final answer:
The skin produces vitamin D, provides protection, and helps regulate body temperature.
Step-by-step explanation:
The skin is the organ that produces vitamin D, provides protection, and helps regulate body temperature. Vitamin D is produced when skin is exposed to sunlight, specifically UVB rays. The skin also acts as a protective barrier, preventing bacteria and other harmful substances from entering the body. Additionally, the skin plays a role in regulating body temperature through processes such as sweating and shivering.
Learn more about Skin functions and its role in producing vitamin D and regulating body temperature