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About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and:

  1. A
    phosphorus and sulphur
  2. B
    sulphur and magnesium
  3. C
    magnesium and sodium
  4. D
    calcium and phosphorus

Solution & Step-by-step Explanation

The six major elements that make up about of living matter (CHNOPS) are Carbon, Hydrogen, Nitrogen, Oxygen, Phosphorus, and Sulphur. (Note: Calcium is also significant, but P and S are fundamental to nucleic acids and proteins respectively).

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About 98 percent of the mass of every living organism is composed of just six elements including carbon, hydrogen, nitrogen, oxygen and:
A
phosphorus and sulphur
B
sulphur and magnesium
C
magnesium and sodium
D
calcium and phosphorus

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