The following scenario is a metaphor, meant to show how the relationship between surface area and volume limits the maximum size for a single cell. Imagine a circular medieval city whose perimeter is surrounded by a wall. The vast majority of the city's food supply comes from farms outside the city wall and must be transported into the city. By contrast, the people living in the city generate a lot of trash and waste that need to be transported out of the city for disposal. Initially, the city is only 4 miles across, which means that its radius (7) is 2 miles. Determine the length of the city wall needed to surround the city by calculating the city's perimeter. The equation for the perimeter of a circle is 2nr (for this problem, use n= 3). Then determine the area of the city, which is an indicator of its population size. The equation for the area of a circle is Tr? (again, use n=3). Enter the results of your calculations in the following boxes. The length of the city wall is enter answi miles. The area of the city is enter answ square miles. Over time, the population grows and the city widens to be 8 miles across, with a radius of 4 miles. The result is that the length of the expanded city wall is 24 miles and the area of the expanded city is 48 square miles. As the city expands, both perimeter and area increase. However, the select answer. increases at a much faster rate, Food and waste must be transported through the city gates. An expanding city must develop solutions to make sure that enough food is moved in and enough waste is moved out each day to support its growing size. Food and waste must be transported through the city gates. An expanding city must develop solutions to make sure that enough food is moved in and enough waste is moved out each day to support its growing size. The metabolic reactions of a living cell produce the same problems as this growing city. In this analogy, the city walls represent the select answer of the cell. The area inside the city represents the select answer of the cell. The following table lists some adaptations that enable a city to grow larger and still accommodate its growing population. Identify the corresponding adaptation a cell can make that would enable it to grow larger. Adaptation Made by a Large City Adaptation Made by a Large Cell Faster methods of cargo transport select answer. More gates built into the city wall select answer Centralized food distribution centers select answer