Many elements are found in living organisms, either free or the form of compounds. Which of the following is not found in living organisms?

a. Silicon
b. Magnesium
c. Iron
d. Sodium

Answers (1)

Solution:
Option (a) is the answer.

Explanation:
Elements other than Silicon, are all important constituents of a living organism. Living organism have a significant constituent requirement of Iron, Magnesium and Sodium.

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