The diagrams illustrate the hypothetical amount of biomass and energy available at each trophic level of a freshwater aquatic ecosystem. The width of each tier in the community biomass diagram represents the amount of biomass present during the system census. The width of each tier in the community energy diagram represents the amount of energy that enters each trophic level annually. Community biomass Community energy Top carnivores Carnivores Herbivores Producers Top carnivores Carnivores Herbivores Producers Why is the energy diagram in the shape of a pyramid, with the greatest amount of energy at the lowest trophic level and the least amount of energy at the highest trophic level? Most energy circulating at lower trophic levels is lost as metabolic heat when energy is passed along the food chain. There is not as much biomass at higher trophic levels. Therefore, less energy is required in the system. The diagrams represent an aquatic ecosystem. If the diagrams represented a terrestrial ecosystem, the shapes would appear to be inverted pyramid There are fewer top carnivores than producers, and it takes more energy to maintain a top carnivore than it does to maintain a producer.
The diagrams illustrate the hypothetical amount of biomass and energy available at each trophic level of a freshwater aquatic ecosystem. The width of each tier in the community biomass diagram represents the amount of biomass present during the system census. The width of each tier in the community energy diagram represents the amount of energy that enters each trophic level annually. Community biomass Community energy Top carnivores Carnivores Herbivores Producers Top carnivores Carnivores Herbivores Producers Why is the energy diagram in the shape of a pyramid, with the greatest amount of energy at the lowest trophic level and the least amount of energy at the highest trophic level? Most energy circulating at lower trophic levels is lost as metabolic heat when energy is passed along the food chain. There is not as much biomass at higher trophic levels. Therefore, less energy is required in the system. The diagrams represent an aquatic ecosystem. If the diagrams represented a terrestrial ecosystem, the shapes would appear to be inverted pyramid There are fewer top carnivores than producers, and it takes more energy to maintain a top carnivore than it does to maintain a producer.
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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Transcribed Image Text:The diagrams illustrate the hypothetical amount of biomass and energy available at each trophic
level of a freshwater aquatic ecosystem. The width of each tier in the community biomass diagram
represents the amount of biomass present during the system census. The width of each tier in the
community energy diagram represents the amount of energy that enters each trophic level annually.
Community biomass
Community energy
Top carnivores
Carnivores
Herbivores
Producers
Top carnivores
Carnivores
Herbivores
Producers
Why is the energy diagram in the shape of a pyramid, with the greatest amount of energy at the
lowest trophic level and the least amount of energy at the highest trophic level?
Most energy circulating at lower trophic levels is lost as metabolic heat when energy is passed along the food
chain.
There is not as much biomass at higher trophic levels. Therefore, less energy is required in the system.
The diagrams represent an aquatic ecosystem. If the diagrams represented a terrestrial ecosystem, the shapes
would appear to be inverted pyramid
O There are fewer top carnivores than producers, and it takes more energy to maintain a top carnivore than it
does to maintain a producer.
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