How much difference is there between the lower critical temperature of a polar b

Question

How much difference is there between the lower critical temperature of a polar bear cub and the temperature at which its metabolic rate doubles?

B. 10 degree C

C. 18 degree C

D. 36 degrees C

E. 55 degrees C

Observed _ Extrapolated ARCTIC TROPICAL 400 Marmoset Unclothed human Jungle rat Night monkey Polar bear cub squirrel Ground Raccoon Lemming Weasel Coati 300 Sloth Eskimo dog pup E 200 100-Arctic fox and larger Basal metabolic rate 100 2 mammals 70 50 10 10 30 Lowest temperature in Arctic Body temperature Environmental temperature (°C)

Explanation / Answer

D. 36 degrees C. If we double the metabolic rate it's 200 at that point temperature is - 30 degrees and metabolic rate at lower critical temperature is about 5 degrees. So difference is nearly 35 degrees~36 degrees.

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