Biology
Medium
Question
Which are the four most abundant elements in living cells ?
A
carbon, oxygen, nitrogen, sulfur
B
carbon, oxygen, hydrogen, nitrogen
✓ Official correct answer
C
carbon, oxygen, sulfur, phosphorus
D
carbon, sulfur, hydrogen, magnesium
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A
carbon, oxygen, nitrogen, sulfur
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B
carbon, oxygen, hydrogen, nitrogen
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C
carbon, oxygen, sulfur, phosphorus
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D
carbon, sulfur, hydrogen, magnesium
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