Discussion Post
• Your textbook mentions 3 types of macromolecules which are carbohydrates, fats, and proteins. Please, describe all 3 macromolecules.
• What is pH? How do the respiratory and urinary systems regulate pH?
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.