Respuesta :
Proteins are the crucial nutrients made up of the polypeptide or the amino acid chains. Teeth are one of the body parts that is not composed primarily of proteins.
What are proteins and their importance?
Proteins are the major nutrient required by the body for functioning and other activities. Cells, tissues, muscles, organs and the organs system are all composed of proteins and are an essential part of the body.
The cells and the tissues of the skin, nails and some of the hair components are composed of proteins in their structures, while teeth do not include proteins instead are made up of calcium.
Therefore, option D. teeth are not primarily composed of proteins.
Learn more about proteins here:
https://brainly.com/question/14405490
