Question

directions: 1. answer the questions below by clicking the button next to the best answer or typing your answer. each questions answers are in grey. 2. at the end of every page click the ne button to move forward to the next pag do not use the browsers back bu question(s) 7 of 25: 7. what are the major chemical elements that make up human hair? 1 pts. a. carbon, oxygen, hydrogen, nitrogen, and sulfur b. proteins, minerals, lipids, and traces of minerals c. amino acids and polypeptide chains d. hydrogen bonds flag this question for later review the quizstar team provides technical assistance and su 8:00 a.m.- 5:00 p.m. central standard time, excludin copyright © 2000-2005 altec - advanced learning technologies in education center for research on learning at the university

Explanation:

Human hair is mainly composed of a protein called keratin. The major chemical elements in keratin are carbon, oxygen, hydrogen, nitrogen, and sulfur. Other options are either compounds or macromolecules rather than elements.

Answer:

A. carbon, oxygen, hydrogen, nitrogen, and sulfur