Question

the model shows the chemical structure of a molecule. this molecule is a building block of which type of biomolecule? carbohydrate protein lipid nucleic acid

Explanation:

The molecule shown is a monosaccharide, which is a building - block of carbohydrates. Monosaccharides have the general formula (CH₂O)ₙ and contain multiple hydroxyl (-OH) groups and a carbonyl group. Proteins are built from amino acids, lipids are a diverse group with different structures like fatty acids and glycerol, and nucleic acids are composed of nucleotides.

Answer:

carbohydrate