This video lecture from Homeostasis (F.Sc. second year Biology) covers: Thermoregulation, Adaptations in plants to low and high temperature, thermoregulation in animals, body heat, heat gain and loss and temperature classification of animals i.e. poikilotherms, homeotherms, endotherms, ectotherms and heterotherms. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.