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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Question
why does it take 1000kg of grasses to make 100kg of lemmings? Said another way, why can’t you get 1000kg of lemmings from 1000kg of grasses?
Expert Solution
Step 1
The trophic level represents the position of an organism or group of organisms in a food web or food chain in an ecosystem. The first trophic level consists of plants that are the primary producers of an ecosystem. Herbivores like lemmings are primary consumers that feed on producers, are placed in the second trophic level, and carnivores are placed in other subsequent trophic levels.
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