Final answer:
The delivery of blood by the left ventricle into the aorta is intermitted, whereas blood flow in the peripheral circulation is usually continuous due to differences in the structures and functions of the arteries and capillaries involved.
Step-by-step explanation:
The difference between the delivery of blood by the left ventricle into the aorta and blood flow in the peripheral circulation is due to the distinct structures and functions of the arteries and capillaries involved. When the left ventricle pumps blood into the aorta, it does so in short bursts or intervals, allowing for efficient distribution of oxygen-rich blood to the various regions of the body. However, in the peripheral circulation, blood flow is continuous as it travels through a network of smaller arteries, arterioles, and capillaries, where gas exchange and nutrient exchange take place.