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Which animal expends the most kilocalories per year on
thermoregulation?
Thermoregulation is the process by which an organism maintains its body temperature at a state of equilibrium despite of the surrounding temperature.
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Solved in 2 steps
- Why is thermoregulation more effectively achieved in larger animals than in smaller ones?What would be the impact on obligatory volume if humans had a medullary concentration gradient extending to 2000 mOsm/L?. Does the penguin or the mouse expend a greater proportion ofits energy budget on thermoregulation? Why?
- An adult animal consumed 50 kcal of food. 5 kcal have been excreted in urine and feces. Where did the remaining 45 kcal eventually go?As body size increases, what happpens to the surface area/volume ratio and metabolic rates?People who begin to lose weight often havea rapid weight loss in the first few days. Common knowledge saysthat this is “just” because of a loss of water from the body. Whymight this be true?
- How does the possession of black feathers by vulture affect thermoregulation?Patients who have experienced significant blood loss by hemorrhage(30–40% of total blood volume) often feel intensely thirsty. Whichmechanism has been activated in these patients?What is the importance ofthe glucose blood level forhuman health?