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A visitor to a region of hot climate is more distressed by the heat than the regular resident. Within a few weeks, the visitor is more comfortable with the heat […]

Which one does NOT occur as a physiological adjustment during heat acclimatization? (1) Lowered threshold for start of sweating (2) Effective distribution of cardiac output (3) Improved skin blood flow […]

If the core body temperature of a human rises above normal, which of the following processes would be initiated sequentially for Thermo-regulation? (1) Peripheral vasodilation, increased rate of respiration, tachycardia. […]

Which one of the following routes is responsible for maximum amount of body heat loss in humans at an ambient temperature of 210C? (1) Radiation and conduction (2) Respiration (3) […]

Polar bears maintain their body temperature because they have more of (1) transducin protein. (2) uncoupling protein. (3) myoglobin protein. (4) FOF1 ATPase. How Polar Bears Maintain Their Body Temperature: […]

Name the ectothermic animal that can thermoregulate by behavioural means rather than by physiological means. (1) Bumble bee in an orchard. (2) Tuna fish in the ocean. (3) Lizard in […]

Main function of sweating is (1) Thermoregulation of body (2) Excrete salt (3) Maintenance of blood volume (4) Osmoregulation of body The Main Function of Sweating: Thermoregulation of the Body […]

2. Temperature of body is regulated by (1) Hypothalamus (2) Suprachaismatic nuclei (3) Cerebellum (4) Cerebrum Body Temperature Regulation: The Command of the Hypothalamus Maintaining a stable internal temperature is […]

In human brain, the thermoregulatory center is located at (1) cerebral cortex (2) hypothalamus (3) medulla (4) basal ganglia The Thermoregulatory Center in the Human Brain: Why the Hypothalamus Is […]