Igcse Model Questions Vol1 2019 Biology Question 23
Practice objective / multiple choice question 23 from the 2019 Igcse Model Questions Vol1 Biology examination.
At rest a person produces metabolic heat at a rate of 100\,W. The ambient temperature is 35\,°C and the core body temperature is 37\,°C. Heat can be lost by radiation (\(5\ \text{W/°C}\) per degree difference), convection (\(3\ \text{W/°C}\) per degree difference) and evaporative cooling from sweating, which can remove up to 80\,W when sweating at its maximum rate. If the body uses radiation and convection together to dissipate exactly 60\,W, what fraction of the maximum sweating rate is required to maintain thermal balance?
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About This Question
This is Igcse Model Questions Vol1 2019 Biology Question 23. It is one of the objective questions from the 2019 Igcse Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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