Find an article from the library and/or internet related to course material from Ch. 13 – 15 that you find interesting and post a link. It could be a news article from a source like the Washington Post, an article posted by a science magazine/journal like Science or National Geographic, or a scientific research article. (You cannot post something like a Wikipedia or WebMD article however.) You’ll probably have the best luck searching for things related to Homeostatic Imbalances.
Chapter 13 is about sensory receptors so the article can be able that.