A fast-acting hormone produced by the intermediate lobe of the pituitary and that promotes dispersion of pigment in fishes,amphibians,and reptiles is
A)pineal gland stimulating hormone (PGSH).
B)vasotocin.
C)melatonin.
D)melanocyte-stimulating hormone (MSH).
E)oxytocin.

Question

Quizplus · Accepted Answer

Melanocyte-stimulating hormone (MSH) is produced by the intermediate lobe of the pituitary and stimulates melanocytes to disperse pigment. This is particularly important in fishes, amphibians, and reptiles as they rely on their coloration for communication, camouflage, and thermoregulation.

A Fast-Acting Hormone Produced by the Intermediate Lobe of the Pituitary