Which of the following is NOT a mechanism of heat exchange, as listed in the material?

• A. Metabolic
• B. Conductive
• C. Convective
• D. Evaporative

Answer: (C)

The main idea is distinguishing heat produced inside the body from heat transferred between the body and its surroundings. Conductive heat transfer happens when the body touches a colder surface, transferring heat through direct contact. Convective heat transfer occurs as moving air or water carries heat away from or toward the body. Evaporative heat loss happens when sweat evaporates, taking heat with it. Metabolic heat production is the body’s internal generation of heat from biochemical reactions; it increases body heat but is not a pathway for transferring heat to or from the environment. So metabolic heat production is not a mechanism of heat exchange, whereas conductive, convective, and evaporative are.