Which is not one of the four atoms that make up the bulk of living organisms?

Question

Quizplus · Accepted Answer

Oxygen, nitrogen, and carbon are all essential elements found in organic molecules that make up living organisms. Calcium, on the other hand, is not one of the four most abundant elements in living organisms. While calcium is important for certain biological processes such as bone formation and muscle contraction, it is not a major component of organic molecules like proteins, carbohydrates, and lipids.

Which Is Not One of the Four Atoms That Make