Question

A train car is to a train, as a _______________ is to a polymer and a molecule is to a ______________

Answer 1

Answer: In bold and underlined

A train car is to a train, as a Monomer is to a polymer and a molecule is to a Macromolecule.

Step-by-step explanation :

MACROMOLECULE CONCEPT:

A macromolecule is a large molecule commonly created through the polymerization of smaller subunits. They are usually made up of thousands, or more, atoms.