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  • Which of the following elements is not commonly present i...
Multiple choice

Which of the following elements is not commonly present in protoplasm?

  1. Phosphorus

  2. Iron

  3. Calcium

  4. Zinc

  5. -

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

This is the correct answer. Zinc is not commonly present in protoplasm.

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