The higher level of metabolic activity typical of nonhibernating temperate mammals during the winter months is due to increased secretion of
A)ecdysteroid.
B)glucagon.
C)thyroxine.
D)oxytocin.
E)growth hormone.

Question

Quizplus · Accepted Answer

Nonhibernating temperate mammals increase their metabolic activity during winter due to the increased secretion of thyroxine, which can increase basal metabolic rate and heat production to help them cope with the colder temperatures.

The Higher Level of Metabolic Activity Typical of Nonhibernating Temperate