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What is a key difference between carbohydrates and proteins?

A. Carbohydrates are biomolecules; proteins are not
B. Proteins contain covalent bonds; carbohydrates do not
C. Proteins contain nitrogen; carbohydrates do not
D. Carbohydrates contain carbon; proteins do not

User Coco
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Answer:

C

Step-by-step explanation:

User Steve Yohanan
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