When smaller molecules are bonded together to create larger ones, the smaller molecules
are called
_and the larger molecules that they build are called

When smaller molecules are bonded together to create larger ones, the smaller molecules  are called  monomers and the larger molecules that they build are called polymers

Explanation:

Monomer is a relatively small molecule that can form covalent bonds with other molecules of its type to form a polymer. Polymer is a relatively large molecule consisting of a chain of many identical monomers chemically bonded to each other.

the electromagnetic spectrum includes, from longest wavelength to shortest: radio waves, microwaves, infrared, optical, ultraviolet, x-rays, and gamma-rays.