There are 6 nutrients in the body which helps in keeping the body healthy. These components are carbohydrates, fats and proteins. These molecules helps in providing energy to the body.
The vitamins minerals and water is equally important for the cells as it helps in carrying out various types of reactions inside the body.
All the macro and micro nutrients are important for keeping the body healthy.
Answer: Animals undergoing examination should be restrained with just enough force to calm them and keep them still so that the veterinarian can provide proper veterinary care. Each animal's restraint needs will be different and dependent on their behaviors and anatomies.