(4) Throughout most of human history, for nutritional purposes human beings have gotten (a) 90% of our food from just 15 crop species and 8 livestock species (b) 90% of our food from 10 crop species and 6 livestock species (c) 90% of our food from 5 crop species and 3 livestock species (d) at least 90% of our food from 7000 plant species and several thousand animal species.
(4) Throughout most of human history, for nutritional purposes human beings have gotten (a) 90% of our food from just 15 crop species and 8 livestock species (b) 90% of our food from 10 crop species and 6 livestock species (c) 90% of our food from 5 crop species and 3 livestock species (d) at least 90% of our food from 7000 plant species and several thousand animal species.
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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