Campbell Biology (11th Edition)

Published by Pearson
ISBN 10: 0-13409-341-0
ISBN 13: 978-0-13409-341-3

Chapter 37 - 37.2 - Concept Check - Page 810: 1


Essential elements are just that: Essential and required for life. The differences among them are in the amounts needed and how severe deficiency symptoms are.

Work Step by Step

The key is to focus on the adjective “essential.” All of them must then be important— the differences are in their particular uses.
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