The student describes patterns, cycles, systems, and relationships within environments.
Content
The student is expected to predict how changes in the ecosystem affect the cycling of matter and flow of energy in a food web;
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Vertical TEKS Alignment
Organisms and Environments - Flow of Energy
3.12.B identify and describe the flow of energy in a food chain and predict how changes in a food chain such as removal of frogs from a pond or bees from a field affect the ecosystem;"
4.12.B describe the cycling of matter and flow of energy through food webs, including the roles of the Sun, producers, consumers, and decomposers;
6.12.B describe and give examples of predatory, competitive, and symbiotic relationships between organisms, including mutualism, parasitism, and commensalism;
7.12.A diagram the flow of energy within trophic levels and describe how the available energy decreases in successive trophic levels in energy pyramids;
7.12.B describe how ecosystems are sustained by the continuous flow of energy and the recycling of matter and nutrients within the biosphere.
8.12.A explain how disruptions such as population changes, natural disasters, and human intervention impact the transfer of energy in food webs in ecosystems;
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