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Q.
Thick layer of fat below the skin, known as blubber helps in reduction in loss of body heat. This blubber is characteristic feature of _________.
NTA AbhyasNTA Abhyas 2020
Solution:
Blubber is a thick layer of vascularized adipose tissue that covers the entire body of animals such as seals, whales, and walruses. It is an important part of a marine mammal's anatomy. Blubber stores energy, insulates heat, and increases buoyancy. Blubber insulates marine mammals, or helps keep them warm in icy waters.
Kangaroo rat is capable of meeting all of its water requirements through its internal fat oxidation where water is released as by-product. It can also concentrate its urine so that minimal volume of water is used to remove excretory products.
Antarctic fishes can survive below 0 0C. The body fluid of these fishes contains antifreeze solutes by which they can manage to keep their body fluids from freezing.
Some organisms like desert lizards lack the physiological ability to cope with extreme temperature but manage the body temperature by behavioural means. They bask in the sun and absorb heat when their body temperature drops below the comfort zone, but move into shade when the ambient temperature starts increasing.