Answer
D.
Work Step by Step
As time goes by, more producers are introduced. However, in this scenario, they occur in the following order.
1. Bare soil
2. grasses and wild flowers
3. shrubs
4. sunlight-tolerant trees
5. shade-tolerant trees
Environmental Science for AP* (2nd Edition)
by Friedland, Andrew J.; Relyea, Rick
Published by
W. H. Freeman
ISBN 10:
1464108684
ISBN 13:
978-1-46410-868-6
Chapter 6 - AP Environmental Science Practice Exam - Section 1: Multiple-Choice Questions - Page 222: 10
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