Answer:
Glycerol!
Explanation:
Triglyceride is an Ester, that is formed by the reaction between 1 glycerol and 3 fatty acid molecules, it's commonly known as fat. It act as storage for energy in the human body and as well as provides insulation. It also absorbs fat - absorbing vitamins in the body. When body needs more energy , it breaks down fat by the process of lipolysis into fatty acids and glycerol and release them in the blood.
I believe the answer is B.
Answer: Such constant change has characterized Earth since its beginning some 4.5 billion years ago. From the outset, heat and gravity shaped the evolution of the planet. These forces were gradually joined by the global effects of the emergence of life.
Explanation: