Answer:
Radiation
Step-by-step explanation:
The type of heat transfer capacity that is lost is radiation since it is necessary for the body to be at a temperature higher than the environment. That is why when the ambient temperature is higher than the body temperature, evaporation is the only form of heat loss, becoming an essential mechanism for the maintenance of homeothermia.
On the other hand, thermal radiation is energy emitted by matter that is at a given temperature, it is produced directly from the source outward in all directions.