How do human beings maintain a constant body temperature despite changes in the surrounding?

How do desert lizards maintain a fairly constant body temperature?

Organims capable of maintaining constant body temeprature are

Animals having a built in thermostat to maintain constant body temperature are known as:

Stefan Boltzman law : E=esigma(T^(4)-T_(0)^(4)) where E is emittance , e is emissivity , sigma is Stefan 's constant , T is temperature of body , T_(0) is temperature of surroundings . Is the statement true?

How is centigrade temperature changed in kelvin temperature ?

How is kelvin temperature changed to centigrade temperature ?

Fill in the blanks The animals which have constant body temperature are named as………… .