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Author Question: Which of the following elements, essential to life, is a trace element? A) phosp (Read 1067 times)

Mr. Wonderful

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on: Apr 23, 2014
Which of the following elements, essential to life, is a trace element?
A) phosphorus
B) carbon
C) iodine
D) calcium


Millan

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Reply #1 on: May 9, 2014
This is for essentials biology, right? the answer is C. Bye for now.


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Mr. Wonderful

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Reply #2 on: May 9, 2014
Thank you, you were right :D


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