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?

Question

a
The elements make up carbohydrates, lipids, proteins, and nucleic acids.
b
The elements are the result of organisms breaking down larger elements in food.
c
The elements are the most stable elements found on Earth.
d
The elements are produced by organisms as they undergo cellular processes.

Answer 1

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