Which element is found in nucleic acids but not in proteins?
carbon
hydrogen
nitrogen
phosphorus

phosphorus is found in nucleic acids but not in proteins

Explanation:

Carbon, hydrogen and oxygen (C, H, O) participate in the composition of organic compounds such as carbohydrates, lipids, proteins and nucleic acids.

Nucleic acids are formed by: carbon (C), hydrogen (H), oxygen (O), nitrogen (N) and phosphorus (P).

Proteins are biomolecules. 5 elements are  found in most proteins: carbon (53%), hydrogen (7%), oxygen (23%), nitrogen (16%) and sulfur (1%). Nitrogen differentiates proteins from fats and carbohydrates.

Then we can see that phosphorus is found in nucleic acids but not in proteins

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

trachea, alveoli, lung capillaries, arteries