Refer to the given graph representing temperature gradient through different regions of Earth.

Identify labelled parts P-S and select the correct statement regarding them.

Options

A. Animals inhabiting S possess blubber.
B. Animals inhabiting R may have small body appendages to reduce the exposed surface area.
C. Animals inhabiting P do not drink water and use only metabolic water to fulfill their water requirements.
D. Animals inhabiting Q undergo aestivation whereas animals inhabiting S undergo hibernation.

Answer

B

Explanation

In the given graph S represents hot desert area, P represents tropical rainforest area, Q and R represent cold area like arctic and antarctic. Desert animals do not possess blubber and they use metabolic water to fulfill their water requirement. Animals inhabiting cold and hot areas undergo hibernation and aestivation respectively.