Respuesta :

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Answer: they are distinguished from one another by the number of fatty acids attached to the glycerol backbone.

A monoglyceride is a  molecule formed by a glycerol backbone and one fatty acid covalently bonded to it through ester linkages.
A diglyceride is a  molecule formed by a glycerol backbone and two fatty acid chains covalently bonded to it through ester linkages.
A tryglyceride is a  molecule formed by a glycerol backbone and three fatty acid chains covalently bonded to it through ester linkages.