I think A but I'm not totally sure!! Good luck.
Answer: they are distinguished from one another <span>by the number of fatty acids attached to the glycerol backbone.
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<span>A monoglyceride is a molecule formed by a glycerol backbone and one
fatty acid covalently bonded to it through ester linkages.
</span>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.
Answer:
In a habitat there are red bugs and green bugs. The birds prefer the taste of the red bugs, so soon there are many green bugs and few red bugs. The green bugs reproduce and make more green bugs and eventually there are no more red bugs.
1. sewage system - facility consisting of a system of sewers for carrying off liquid and solid sewage. sewage works, sewer system. facility, installation - a building or place that provides a particular service or is used for a particular industry; "the assembly plant is an enormous facility"