The body temperature of two different mammals was recorded over 24 hours - VCE - SSCE Biology - Question 23 - 2005 - Paper 1
Question 23
The body temperature of two different mammals was recorded over 24 hours. The average daytime temperature was 40°C and the average night-time temperature was 20°C. T... show full transcript
Worked Solution & Example Answer:The body temperature of two different mammals was recorded over 24 hours - VCE - SSCE Biology - Question 23 - 2005 - Paper 1
Step 1
between midnight and 6.00 am, mammal H would be gaining heat by conduction.
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Answer
During this time, mammal H's body temperature is lower than the ambient temperature, indicating that it could potentially gain heat through conduction with the warmer surrounding environment.
Step 2
at 12.00 noon, mammal H would be gaining heat by radiation.
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Answer
At noon, when the average daytime temperature is recorded at 40°C, mammal H's body temperature indicates that it would indeed be absorbing heat due to exposure to sunlight, which is a form of radiation.
Step 3
at 12.00 noon, mammal G is losing heat by radiation.
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Considering mammal G's body temperature at noon is higher than that of the surrounding environment, it will lose heat to the cooler air through radiation at this time.
Step 4
between midnight and 6.00 am, mammal G would be losing heat through evaporation of sweat.
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Answer
Mammal G's body temperature remains high during this period; if it is engaged in natural physiological cooling processes, it would be losing heat due to the evaporation of sweat.
