Since the war eight months ago, Henry, a 35-year-old soldier, has been experiencing flashbacks that causes him to relive the grievous experiences that he went through during the war. Henry is terrified of these flashback episodes and tries to avoid all reminders of the war. He refuses to talk about his feelings and avoids looking at his uniform. This anxiety interferes with Henry’s sleep and social functioning. In the context of anxiety and anxiety-related disorders, it can be inferred that Henry is exhibiting the symptoms of:

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .