Final answer:
The role of carbon, hydrogen, oxygen, and nitrogen in living organisms is critical for the formation of diverse molecules necessary for life.
Explanation:
Carbon, hydrogen, oxygen, and nitrogen are the four most abundant elements in living organisms. Carbon forms four bonds, nitrogen forms three, oxygen forms two, and hydrogen forms one, allowing for a vast array of molecules necessary for life.
Hydrogen and oxygen are crucial components of water and organic molecules, while carbon is present in all organic molecules. Nitrogen is essential for nucleic acids and proteins, contributing to the foundation of living matter.
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