Science.7.12.A

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The student is expected to diagram the flow of energy within trophic level and describe how the available energy decreases in successive trophic level in energy pyramid; and
1666 TEKS header image

Knowledge and Skills Statement

Organisms and environments. The student understands that ecosystem are dependent upon the cycling of matter and the flow of energy.

to be influenced or determined by or subject to something or someone else; reliant on something or someone else for support

the biotic and abiotic resources provided to support specific populations in a community

a measurable quantity that describes how much change can occur within a system

a model that shows the flow of energy from one trophic level to the next in an ecosystem

one of the hierarchical strata of a food web characterized by organisms that are the same number of steps removed from the primary producers

Research

Bonhommeau, Sylvain,  Laurent Dubroca, Olivier Le Pape, Julien Barde, David M. Kaplan, Emmanuel Chassot, and Anne-Elise Nieblasa. “Eating up the World’s Food Web and the Human Trophic Level.” Proceedings of the National Academy of Sciences of the United States of America 110, no. 51 (December 2013):20617–20620. doi: 10.1073/pnas.1305827110

Summary: "Eating up the World’s Food Web and the Human Trophic Level" provides educators with knowledge of trophic energy levels, the transfer of energy between them, and sample producers and consumers found in the various levels based on diet through research on trophic levels for humans.