Final answer:
The major elements that make up human hair - carbon, oxygen, hydrogen, nitrogen, and sulfur - are commonly known as the 'building blocks' of life and are essential in the formation of biological molecules.
Step-by-step explanation:
The major elements that make up human hair are carbon, oxygen, hydrogen, nitrogen, and sulfur, and these are often referred to as the building blocks of life. These elements are not only fundamental to the structure of hair but also to many other forms of living matter, including nucleic acids, proteins, carbohydrates, and lipids. In biology, understanding how these elements combine and interact to form the various molecules necessary for life is crucial. These biogenic elements, sometimes represented by the acronym CHNOPS (carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur), are considered the essential components from which life is structured and functions.