Q8

The graph below shows the relationship between body temperature and environmental temperature of 4 different organisms. Which of the following statements is best supported by the data?
A. Animals I and II are most likely mammals.
B. Animal II is endothermic over the environmental temperature range of 0 to 30°C.
C. Animal III maintains its body core temperature relatively constant by shivering when the environmental temperature falls below 37°C.
D. Animal IV is most likely a mammal in polar region.