Question

proteins are organic molecules. what atoms do proteins have? only helium carbon, hydrogen, oxygen and nitrogen only carbon carbon, phosphorus, and uranium

Explanation:

Proteins are organic compounds made up of amino - acids. Amino - acids contain carbon, hydrogen, oxygen, and nitrogen atoms. Helium is a noble gas and not part of proteins. Phosphorus and uranium are not common components of proteins.

Answer:

B. Carbon, Hydrogen, Oxygen and Nitrogen