Evolutionary adaptations that diverse organisms maintain thermoregulation include

a. hibernation, countercurrent exchange, and shivering
b. insulation, decreased blood volume, and evaporation
c. muscle contractions, radiation, and decreased food intake
d. sweating, panting, and elevating blood glucose levels

The right answer is D.

Like any physiological regulation, thermoregulation involves sensors, integrating centers, effectors. The mechanisms of thermogenesis (heat gain) and those of thermolysis (heat loss) are differentiated. In humans, however, the most powerful form of thermoregulation is behavioral thermoregulation: putting on or taking off a garment, changing posture, moving around, taking shelter, and so on.