Which Statement About Heat Exchange Is True

Multiple Choice

Which statement about heat exchange is true?

A) Conduction is the indirect transfer of heat between two objects that are at the same temperature.
B) Evaporation of sweat from the surface of the body warms the body.
C) Ectotherms, but not endotherms, can change the rate of heat exchange between their bodies and the external environment by changing blood flow to the skin.
D) Animals may lose heat by convection when they are exposed to wind with a temperature below that of their body surface.
E) Warm blood passing close to cooler blood picks up energy from the cooler blood.