TEKS: Chapter 112. Science See All Teacher Resources

112.19.b.13

(13) Organisms and environments. The student knows that a living organism must be able to maintain balance in stable internal conditions in response to external and internal stimuli. The student is expected to:

• (A) investigate how organisms respond to external stimuli found in the environment such as phototropism and fight or flight; and 
• (B) describe and relate responses in organisms that may result from internal stimuli such as
  wilting in plants and fever or vomiting in animals that allow them to maintain balance.