Exposure to a hot environment causes the body to sweat. The hotter the environment, the greater the sweating. Two anatomy and physiology students are arguing about the mechanisms involved. Student A claims that they are positive feedback, and student B claims they are negative feedback. Do you agree with student A or student B, and why? (275 words) Don`t forget your references! (2 sources) Carbon dioxide that accumulates in the blood can become toxic, in part because it alters the blood pH. Some of the carbon dioxide molecules react with water to form carbonic acid (CO2 + H2O ó H2CO3). Ned can swim across the swimming pool under water. Before diving into the water, he breathes rapidly for a few seconds, and while he is under the water he does not breathe at all. Explain how the pH of his blood changes while breathing rapidly and while swimming under water. Also explain why the pH of his blood does not change dramatically.(275 words) Don`t forget your references! (2sources)