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Many elements are found in living organisms, either free or in the form of compounds. Which of the following is not found in living organisms?
a. Silicon
b. Magnesium
c. Iron
d. Sodium
Answers (1)
Elements other than Silicon, are all important constituents of a living organism. Living organisms have a significant constituent requirement of Iron, Magnesium and Sodium. Hence, Option (a) is the correct answer.
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