Nucleic acids and carbohydrates are both types of what? a. elements b. atoms c. proteins d. macromolecules

(D). Macromolecules.

Explanation:

Macromolecules are very large molecules, made up of many smaller subunits. These subunits are known as monomers that combine together to for macromolecule. Nucleic acids and carbohydrates are examples of macromolecule.

Nucleic acids are formed by polymerization of nucleotide molecules (made up of sugar, nitrogen base, and phosphate groups), which complex carbohydrates are formed by polymerization of monosaccharides, such as glucose.

Thus, the correct answer is option (D).

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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.