The given image represents the growth of a goldfish. There are 4 stages shown in the image with their body size and age are compared. The one-month-old gold fish is about one and a half inches long, while at three months it becomes 3 inches long. At one year, it becomes 5 inches long, while two-year-old fish almost 9 inches long. In conclusion, this is a good representation to tell the future size of goldfish by its age.