Environmental Science for AP* (2nd Edition)

Published by W. H. Freeman
ISBN 10: 1464108684
ISBN 13: 978-1-46410-868-6

Chapter 3 - AP Environmental Science Practice Exam - Section 1: Multiple-Choice Questions: 9

Answer

B

Work Step by Step

Nitrogen forms the bases for amino acids that are the building block for DNA and RNA. Since humans and other organisms contain a lot of DNA and RNA, Nitrogen is one of the building blocks for all life.
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