Changes in body temp. in cold weather?

Question

on a cold weather when temperature is -20C,what is the amount of heat needed to warm the body in37C, the .50L of air excahnged w/ each breath?specific heat capacity of air is 1020j/kg K and that 1L of air has a mass of 1.3x10 raise to the -3kg. How much heat is lost per hour if the respiration rate is 20 breaths/min.?

Answer 1

Outside temperatures won't affect warm blooded animals' temperatures.