The picture below represents which stage of photosynthesis?
A. Dark reactions
B. Calvin Cycle
C Glycolysis
D Light reactions

a molecule, containing a very large number of atoms, such as, protein, nucleic acid, or synthetic polyme.

Explanation:

A macromolecule is a very large molecule, such as protein, mostly commonly composed of the polymerization of smaller subunits, called monomers. They are typically composed of thousands of atoms, or more. A substance that is composed of monomers is called a polymer.

Easier version to understand: Macromolecules are large, complex molecules.

I hope this helps you ^^