Question

Why small animals are rarely found in polar regions?

(a) Less loss of heat

(b) Their surface area and body mass ratio is high

(c) Their surface area and body mass ratio is low

(d) Their surface area is small

The question was asked in a national level competition.

The question is from Organisms and Populations topic in section Organisms and Populations of Biology – Class 12

Answer 1

Right answer is (b) Their surface area and body mass ratio is high

The explanation: The small animals are rarely found in polar regions because they have a high surface area and body mass ratio. This is to more loss of heat and thus regulating their body temperature becomes difficult.