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:
A: Under Article Five, the Constitution can be amended in two ways: through a two-thirds majority vote in Congress or by a two-thirds vote of a national convention at the request of at least two-thirds of the states. To become operative, three-quarters of the states, or state ratifying conventions, must ratify. Continue Reading