Multiple choice

Which of the following are the most abundant elements in the living cells?

  1. C, H, S and P

  2. C, O, N and P

  3. C, H, O and N

  4. C, H, Mg and Ca
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

 C, H, O and N are the most abundant elements in the living cells.

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