blood type. Any of the four main types into which human blood is divided: A, B, AB, and O. Blood types are based on the presence or absence of certain substances, called antigens, on red blood cells.Also called blood group.lood type. Any of the four main types into which human blood is divided: A, B, AB, and O. Blood types are based on the presence or absence of certain substances, called antigens, on red blood cells.
Amendments are sent to the legislatures of the states by default. Only one amendment, the 21st, specified a convention. In any case, passage by the legislature or convention is by simple majority. The Constitution, then, spells out four paths for an amendment:
The Articles of Confederation needed to be changed because they weren't working well for the new nation and they had a lot of new things they needed to add on to it, so the Fo â¦ unders decided to abolish the Articles and create a whole new constitution. 12 people found this useful. Alexmariebrown.