Answer:
The answer is Protein---- used for insulation.
This option is incorrectly linked while all the other options are paired correctly.
Step-by-step explanation:
Fats are used as insulation in animals. Proteins are responsible for almost all the major function of the body except for insulation which is the function of Fats. Fats serve as insulating material by conserving the body heat and protect the internal body organs form the external environment. (heat and humid).