What are the 3 major parts of the circulatory system?

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

The transport tubes for food coming down the plants are called?