SC 92 Sog 0 2 Nake-up The diagram below shows the structure for part of a molecule

What subunits of the molecule are shown?
O A amino acid
OB. nucleotide
OC fatty acid
OD. monosaccharide

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question

answerparathyroid gland;