effacement - shortening of the uterine cervix and thinning of its walls as it is dilated during labor. 1  biological process, organic process - a process occurring in living organisms.
There are 535 people in congress. Each state has 2 senators which is 100 and there are 435 representatives. There are 535 members in the United States Congress. 435 100 in the senate (2 per state), the other half of congress is the house of representatives which is 335. The house is based on the state's population.
Congress is bicameral, or 2 housed. The Senate has 100 members (2 for every state) and the House of Representatives has 435 (based on populations of the state, but they all have at least one). Check these sites for specifics.... 2 senators per state and there is at least one congressman per state. That one depends on the population.