Question

analyze the molecule in the diagram.
what type of biological molecule is this?
nucleic acid
protein
carbohydrate
lipid

Explanation:

The diagram shows a molecule with one glycerol and three fatty acids, which is the structure of a triglyceride (a type of lipid). Nucleic acids are made of nucleotides, proteins of amino acids, carbohydrates (like sugars/starch) have different structures, while lipids (specifically fats) have this glycerol - fatty acid structure.

Answer:

D. lipid