The answer is artery.
A blood vessel with a thick layer of smooth muscle and elastic fibers is artery. Even though both artery and veins are smooth muscle and elastic fiber. The difference is veins have valves, while arteries don't.
Answer:
B. To make sure that the two new cells have slightly different genetic codes.
Explanation:
The only bone of the body that does not articulate directly with any other bone is the Hyoid Bone.