Question

Question 34
Animals in cold regions and fish in cold water have a thicker layer of subcutaneous fat under their skin. Justify.

Answer 1

Animals in cold regions and fish in cold water have thicker layer of subcutaneous fat because fat acts as subcutaneous insulation to regulate body- heat. Subcutaneous fat functions as insulating layer that prevents heat loss from the body in colder environments, thus enabling them to survive adverse conditions. Fat also functions as a reserve energy source during periods of scarcity of food.