TEKS: Chapter 112. Science See All Teacher Resources

112.16.b.9

(9) Organisms and environments. The student knows that there are relationships, systems, and cycles within environments. The student is expected to: 

• (A) observe the way organisms live and survive in their ecosystem by interacting with the living and nonliving components; 
• (B) describe the flow of energy within a food web, to including the roles of the Sun, producers, consumers, and decomposers; 
• (C) predict the effects of changes in ecosystems caused by living organisms, including humans, such as the overpopulation of grazers or the building of highways; and  
• (D) identify fossils as evidence of past living organisms and the nature of the environments at the time using models.