Answer:
A Macromolecule is a polymer produced by living organisms composed of linked monomers.
Step-by-step explanation:
Polymer, composed of the large molecule is known as macro-molecule. Macromolecules are large molecules, such as cellulose, protein, nucleic acid, commonly made by the polymerization of multiples of simpler chemical units called monomers. They are made up of thousands of atoms or more.
Protein and nucleic acid both are used to make tissues and other components in the living organisms.