Which three components are common to all amino acids?

A five-carbon sugar, a phosphate group, and a nitrogenous base.

Hope this helps BTW this is on

the 2o amino acids vary structure by the r-group , otherwise all amino acids are in the same structure, all amino acids have carboxyl group , amino group and a r-group and a hydrogen which are all bonded to a central carbon,

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex