Campbell Biology
Campbell Biology
12th Edition
ISBN: 9780135188743
Author: Urry
Publisher: PEARSON
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Chapter 2, Problem 2TYU
Summary Introduction

Introduction:

A trace element, also termed the minor element is needed in trace amounts for physiological activity. That is, a substance that is only very slightly present in an organism yet is necessary for appropriate metabolism. Humans need the trace elements iodine and cobalt.

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