TEKS: Chapter 112. Science See All Teacher Resources

112.34.c.12

(12) Science concepts. The student knows that interdependence and interactions occur within an environmental system. The student is expected to:

• (A) interpret relationships, including predation, parasitism, commensalism, mutualism, and competition , among organisms; 
• (B) compare variations and adaptations of organisms in different ecosystems; 
• (C) analyze the flow of matter and energy through trophic levels using various models, including food chains, food webs, and ecological pyramids; 
• (D) describe the flow of matter through the carbon and nitrogen cycles and explain the consequences of disrupting these cycles; and 
• (E) describe how environmental change can impact ecosystem stability.