Answer
Three species of plants contribute to over 60 percent of human energy intake.
Work Step by Step
Just three edible plant species--corn, rice, and wheat--constitute 60 percent of human energy intake.
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 11 - Module 31 - Human Nutritional Needs - AP Review Questions - Page 362: 5
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