Which of the following can be responsible for Emperor Penguins losing body heat?
Explanation:
The last paragraph mentions that there is loss of heat due to breeding cycle, this clearly points to Option 4 being the correct answer. In the passage it is given that food metabolism is used to maintain body temperature, plumage is used to maintain the body heat and thermal convection helps in regaining the heat. Hence, the correct answer is option 4.
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