The diagram below represents blood moving through a portion of the cardiovascular system. Direction of blood flow VO capillaries from heart to heart 1. Which of the two types of circulation is represented in the diagram? 2. Which of the two blood vessels carries higher levels of oxygen and which blood vessel carries higher levels of carbon dioxide? 3. Describe the flow of blood represented by the diagram. Include the following terms: nutrients, artery, capillaries, vein​