Whick type of macromolecule is made up of subnits that are called amino acids

The macromolecule that is made up of subunits that are called amino acids are the protein. The answer is therefore letter D. The carbohydrates are made up of subunits called monosaccarides. The lipids are mades up of subunits referred to as the fatty acid while nucleic acid are made up of nucleotides.

it is easily magnetized.

because growing process had stoped after 4-5 year