All STDs have readily visible symptoms that are easy to detect.
There are three kinds of blood vessels: arteries, veins, and capillaries. Each of these plays a very specific role in the circulation process. Arteries carry oxygenated blood away from the heart. They're tough on the outside but they contain a smooth interior layer of epithelial cells that allows blood to flow easily.
Answer:
A
Explanation:
Short term stress pressurize you to do your best under certain deadlines
