Question

Which of the following is an important adaptation of animals to the cold climate?

• A. Thin layer of body fat
• B. Aestivation
• C. Decreased tendency to shiver
• D. Reduced surface area to volume ratio

Answer 1

The correct option is D Reduced surface area to volume ratio

1. A thick layer of body fat covered with furs is seen in animals adapted to cold climates.

2. Aestivation or is a state of animal dormancy, similar to hibernation, characterized by inactivity and a lowered metabolic rate, that is entered in response to high temperatures and arid conditions.

3. Increased tendency to shiver would result in the production of more body heat helpful in colder climates.

4. A reduced surface area to volume ratio would expose less body surface for heat dissipation.

So, the correct option is 'Reduced surface area to volume ratio'.