Aluminum Grades Series 7xxx. Zinc, in amounts of 1 to 8% is the major alloying element in 7xxx series aluminum alloys (7075, 7050, 7049, 710.0; 711.0 etc.), and when coupled with a smaller percentage of magnesium results in heat-treatable alloys of moderate to very high strength.
We previously learned that arteries carry blood away from the heart and that veins carry blood toward the heart. This idea holds true here because we see that the pulmonary arteries are carrying blood away from the heart and the pulmonary veins are carrying blood to the heart. The interesting thing is that in most areas of the body, veins carry blood that is low in oxygen and arteries usually carry blood that's rich in oxygen.
  Veins take blood to the heart, arteries take blood away from the heart. The vessels that carry blood to the heart are called veins. Those that supply the body with blood â¦ from the heart are called arteries.Examples are the jugular veins that return blood from the head, and the carotid arteries that supply blood to the head.+ 1 other found this useful.he answer to the question is veins, they are the vessel that carries blood back to the heart. The arteries to the opposite, the carry blood away from the heart and to the res â¦ t of the body.