Final answer:
Macromolecules of life are proteins, carbohydrates, lipids, and nucleic acids. Salts are not classified as macromolecules.
Explanation:
Macromolecules of life are large molecules necessary for life that are built from smaller organic molecules. The main macromolecules include proteins, carbohydrates, lipids, and nucleic acids. While salts are important in biological processes, they are not considered macromolecules.
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