Question

Which is a key element found in all carbohydrates, lipids, proteins, and nucleic acids?


A. legumes


B. nitrogen


C. ammonia


D. carbon

Answer 1

The answer to this question is D. Carbon

Answer 2

A. Legumes are beans..
B. Nitrogen is not in carbohydrates
C. Ammonia which contains nitrogen is not in carbohydrates. 
D. Carbon, carbon is in virtually all organic material.