Which of the following statements is true concerning triglycerides? a. they are always saturated molecules
b. they are Alkanes
c. they are made of one fatty acid attached to three molecules of glycerol
d. they are a form of reserve fuel storage
e. they are found in low numbers in living organisms

 d. they are a form of reserve fuel storage

Explanation:

Triglycerides are special type of lipids. They are formed by glycerol with three fatty acid chains. The fatty acid chains can vary in length, they can be saturated or unsaturated with varying composition. It is the most abundant lipid in diet. It is available in plant as well as animal based foods. In case of mammals the triglycerides are stored in the adipose tissue in which they are broken to release energy.

the correct answer is:

a. formation of precipitation