Gce Model Questions Vol1 2019 Biology Question 43
Practice objective / multiple choice question 43 from the 2019 Gce Model Questions Vol1 Biology examination.
A small mammal maintains a constant body temperature of \(37^{\circ}\)C. At an ambient temperature of \(20^{\circ}\)C its basal metabolic heat production is \(70\) W, which exactly balances heat loss. When the ambient temperature falls to \(5^{\circ}\)C, the animal increases its metabolic heat production by \(40\)% and reduces its effective surface area for heat loss by \(15\)%. Assuming heat loss is proportional to surface area and the temperature difference between body and environment, calculate the net heat balance (heat produced minus heat lost) at \(5^{\circ}\)C. State whether the balance is positive or negative (in watts).
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About This Question
This is Gce Model Questions Vol1 2019 Biology Question 43. It is one of the objective questions from the 2019 Gce Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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