4. What do amino acids, fatty acids, nucleotides, and sugars (monosaccharides) all have in common?(1 point)

The correct response is:

**They are all monomers.**

Amino acids, fatty acids, nucleotides, and sugars all serve as monomeric units that can combine to form larger biological macromolecules: proteins (from amino acids), lipids (from fatty acids), nucleic acids (from nucleotides), and polysaccharides (from sugars).