Question

Name the type of adaptation from the following that is responsible for shivering thermogenesis.
a. Structural
b. Physiological
c. Behavioural
d. None of these

Answer 1

Shivering is initiated and maintained by the neuronal system since there is no evidence of enhancement or maintenance of shivering by any blood-borne humoral factors (Mercer & Hammel 1993)
Best advice would be Physiological.
Even though the exact physiological reasons for this upper limit are unknown, a number of studies have shown that shivering intensity is associated with cold exposure duration and severity as well as with the morphological characteristics of individuals. There are variables to this answer, but B would be the most precise.