Use arrows to point out features of the graphs and describe what you see. Figures A and B are aligned over time so you will use both together to see what happens in the blood before the dive, during the dive (18 minutes), and after the dive. BP in the upper graph refers to blood pressure and the up and down arrows mark the beginning and end of the change in blood pressure as a result of the 18- minute dive. Once you have described what you see in the graphs, explain the relationships between the factors within each box in the table below.