Melanocyte-Stimulating Hormones

Multiple Choice

Melanocyte-stimulating hormones

A) are responsible for the deposition of melanin in the skin during the process of tanning.
B) are not present in significant amounts in adult humans.
C) are present in varying amounts in races of different skin color.
D) are important for color adaptations associated with camouflage in certain lower vertebrates.
E) are produced in the thyroid gland.