Question

Identify the tissue that is common to the blubber of a whale and the hump of a camel.
a. Cartilage tissue
b. Adipose tissue
c. Areolar tissue
d. Bone tissue

Answer 1

Hint: The hump of the camel is made up of fat tissues. It helps in obtaining the energy when there is a lack of food and insulation of their body. Adipose tissue is a body fat. The blubber is the thick fat layer present in all marine animals. Cartilage tissue is the elastic tissue.

Complete answer:
- The thick layer of blubber is made up of adipose tissue, directly under the skin of all marine mammals. It covers the entire body of animals such as seals, whales, walruses, camels, etc.
- It is a loose connective tissue composed of adipocyte (fat-cells). It is obtained from preadipocytes. These cells store energy in the form of lipids. It acts as cushions. It minimizes the concentration fat will minimize the heat-trapping all through the other body parts. The fat tissues get converted into energy when the fat is metabolized.
- The hump of the camel is made up of fatty adipose tissue. It helps in obtaining energy and provides insulation and also helps to regulate the body temperature.
- Whales have a thick layer of fats which insulates and streamlines, provides buoyancy and acts as an energy reserve. Some whales deposit large amounts of wax esters, rather than triacylglycerols, in blubber. It keeps its vital organs warm while in cold climates.
- Cartilage tissue is elastic tissue that covers and protects the ends of long bones. It is present in the rib cage, the ear, the nose and other body components. It does not provide insulation.
- Areolar tissue helps to hold organs and serve as a reservoir of water and salts for surrounding tissues.
- Bone tissue is a specialized connective tissue which helps in bone rigidity.
- From the above information we have found that Adipose tissue is common to the blubber of a whale and the hump of a camel.

Hence, the correct answer is option (B).

Note: The habitat of camels is desert, where the sources of food are minimal. When a camel couldn’t find its food for a long period, the fats get metabolized for obtaining the necessary nutrition. The camel’s body temperature is regulated by the hump. The whale's blubber layer contains omega-3 fatty acids and vitamin-D. Whale oil was used as wax in candles, and as fuel in oil lamps.