A teacher assigns the following experiment to a class. Draw an outline of a bird's feather, and color one half of the outline with a thick coat from a wax crayon. Leave the other half uncolored. Next, sprinkle a few drops of water on both halves of the feather. You will observe that the water soaks into the plain paper. The waxy coat, however, allows the paper to remain dry. Water forms tiny beads on top of the wax instead of soaking through it. The results of the experiment are MOST USEFUL for explaining which of these functions of lipids in organisms?

Explanation:

A hydrogen bond is a weak type of force that forms a special type of ... and dispersion forces, but weaker than true covalent and ionic bonds. ... When an ionic substance dissolves in water, water molecules cluster around the separated ions. ... Any molecule which has a hydrogen atom attached directly to an.A hydrogen bond is a weak type of force that forms a special type of dipole-dipole attraction which occurs when a hydrogen atom bonded to a strongly electronegative atom exists in the vicinity of another electronegative atom with a lone pair of electrons. These bonds are generally stronger than ordinary dipole-dipole and dispersion forces, but weaker than true covalent and ionic bonds.