Question

carbon, hydrogen, oxygen, and nitrogen are the four most common elements in living things. which statement best describes the function of these elements within an organism?

the elements make up carbohydrates, lipids, proteins, and nucleic acids.

the elements are the most stable elements found on earth

the elements are produced by organisms as they undergo cellular processes.

the elements are the result of organisms breaking down larger elements in food

Explanation:

To solve this, we analyze each option:

1. Carbohydrates (C, H, O), lipids (C, H, O, sometimes N, P), proteins (C, H, O, N, sometimes S), and nucleic acids (C, H, O, N, P) are all made of C, H, O, N (and others). So this option is correct.
2. Stability of elements isn't related to their role in organisms; this is incorrect.
3. Organisms don't produce these elements (they are obtained or part of biochemistry), so this is wrong.
4. Elements aren't "broken down" from larger elements in food; food contains molecules made of these elements, so this is incorrect.

Answer:

The elements make up carbohydrates, lipids, proteins, and nucleic acids.