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Elements of life


The following table shows the relative percentages of elements in a certain biological molecule.
ElementPercentage of total
Carbon (C)46, percent
Nitrogen (N)0, percent
Phosphorus (P)0, percent
Oxygen (O)51, percent
Sulfur (S)0, percent
Hydrogen (H)3, percent
Which of the following best describes the biological molecule?
Choose 1 answer: