PMB addresses allow small businesses to have a professional-looking street address, have someone available during regular delivery hours to sign for letters or packages, pick up the mail at convenient hours, and retain privacy, which can be important for the owners of home-based businesses.
The main â¦ functions of lipids are energy storage, as structural components of cell membranes, and as important signaling molecules.ipids have six major functions. They store energy, they are a  shock absorber, they are structural components in cell membranes,  they are precursors of hormones, they are â¦ insulation, and they aid  in the absorption of vitamins.
Carbohydrates: Carbohydrates are organic compounds made of  carbon, hydrogen, and oxygen atoms. Carbs are made of  monosacharrides (single sugars) linked together. Thei â¦ r function is  to provide a key source of energy for cells. An example is starch,  made of many linked glucose molecules.   2. Lipids: Lipids are nonpolar molecules that are not soluble in  water. They include fats, phospholipids, steroids, and waxes.  Lipids' functions are to provide energy and serve an important part  in the structure and functioning of cell membranes.  4. Nucleic acids: Nucleic acids are long chains of smaller  molecules called nucleotides. Nucleic acids mainly serve the  purpose of providing the organism with its genetic blueprint and  coding. They basically tell you who you are.DNA and RNA are two  types of nucleic acids.