Biology · Cell Biology
About 99% of protoplasm is made up of which four primary elements?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Oxygen, Carbon, Hydrogen, and Nitrogen✓
- 2Oxygen, Calcium, Phosphorus, and Sulfur
- 3Carbon, Sodium, Potassium, and Chlorine
- 4Hydrogen, Nitrogen, Iron, and Magnesium
Correct answer
Oxygen, Carbon, Hydrogen, and Nitrogen
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