Answer: The correct answer is -
D) A ---> B + C + energy.
Explanation:
Catabolic reactions can be described as one of the two types of metabolic reaction (other being anabolic) which occur within cell when complex organic molecules are broken down to form simpler, smaller molecules.
For example - Respiration, which involves glucose breakdown in order to form carbon dioxide and water. Generally they are type of hydrolysis reactions, which include water to break bonds present in complex molecules.
Large amount of energy is also released during these reactions.
Thus, option D) shows catabolic reaction.
The answer is thermoregulation
Human is a warm blooded animal so they have to control their internal temperature. Eccrine glands is the synonym of sweat glands. Sweat has an important role to release heat as they will wet the skin, allow it to evaporate in huge area. If the sweat glands doesn't work, the person will have difficulty to dissipate heat when the body temperature increases.
Molecules in food contains chemical energy that cells use to produce MORE CELLS. This energy is gotten from the chemical bond energy in food molecules, which in this way serve as fuel for cells. The particles in food additionally give the atoms that animals need to develop new living matter.