Four major classes of organic compounds found in living organisms are proteins, carbohydrates, lipids and nucleic acids sugars and fats saccharides and fatty acids vitamins and minerals

proteins, carbohydrates, lipids, and nucleic acids

The correct answer is Lipids and nucleic acids.

Explanation:

There are four types of molecules that mainly form cells. Proteins, that are like the most abundant ones, carbohydrates, lipids that can be found in the cell membrane and nucleic acids which are extremely important because they're the DNA's monomers, meaning that they contain the genetic information.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.  

the answer to your question is tooth decay.