Question

monomer
one __________ or building
block of a _______________
sketch an example of a monomer in the space above

Explanation:

In biology (a subfield of Natural Science), a monomer is defined as one unit or building block of a polymer. For example, glucose is a monomer of the polymer starch, and amino acids are monomers of proteins. So the first blank should be "unit" and the second blank should be "polymer".

Answer:

First blank: unit; Second blank: polymer