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: 14

Answer

A

Work Step by Step

A good carbon and oxygen balance on earth relies on a steady state of cellular respiration between consumers and producers, as well as organism life cycles.
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