biofilm A slime-enclosed community of bacterial colonies that is very difficult to eradicate even with the most powerful antibiotics or sterilizing systems. Biofilms can occur on any body surface, on teeth (as dental plaque), medical equipment, medical tubing, contact lenses and elsewhere.
Either Congress or the states can propose an amendment to the Constitution. 1  Both houses of Congress must propose the amendment with a two-thirds vote. This is how all current amendments have been offered. 2  Two-thirds of the state legislatures must call on Congress to hold a constitutional convention.
The Constitution of the United States of America (see explanation). 1  Preamble [We the people] (see explanation). 2  Article I [The Legislative Branch] (see explanation).3  Section 1. [Legislative Power Vested] (see explanation). 4  Section 2. [House of Representatives] (see explanation). 5  Section 3. [Senate] (see explanation).he Constitution of the United States of America (see explanation). 1  Preamble [We the people] (see explanation). 2  Article I [The Legislative Branch] (see explanation).