Answer:
d. provide insulation against cold temperatures.
Explanation:
Lipids are biomolecular substances that are soluble in non,polar solvents. Lipids are present in every cell of the human body and are the main part of the cellular membrane.
One of the main functions lipids do is storing energy. If a person eats excessive amount of food, lipids help store the energy in the form of fat molecules in the body to use later.
Also, lipds can be used interchangeably as fats - triglycerides which provide insulation against cold temperatures.
Angina, I believe. It's around the brain
