Question

what macromolecule provides the blueprints for building living systems?
proteins
carbohydrates
lipids
nucleic acids

Explanation:

Nucleic acids (DNA and RNA) carry genetic information that dictates the structure, function, and development of living organisms, serving as blueprints for building living systems. Proteins are important for structure and function but not the blueprint - providers. Carbohydrates are energy - sources and structural components. Lipids are for energy storage, membrane - building, etc., but not genetic blueprints.

Answer:

nucleic acids