Entry Test MCQ :: Biology Introduction

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Out of 92 naturally occurring chemical elements how many are considered as bio-elements:

[A].	6	[B].	16
[C].	26	[D].	15

Answer: Option B

hadiqa fazil said:

I think the answer is 6 because in my first year text book it is written that out of 92 biochemicals only six elements about 98% make up the body weight of organism and that elements are carbon,hydrogen,nitrogen,oxygen,phosphorous and sulphur.(Now plz explain me that why u placed 16 as answer?)