Levitt_Legalized_Abortion. Medical methods. Hormonal contraceptives Hormonal contraceptives use artificially synthesized derivatives of the natural steroid hormones estrogen and progesterone.
Estrogen is responsible for the growth of the lining of the womb (endometrium), which occurs early in the menstrual cycle. Progesterone is produced in the second half of the cycle and in great quantities in pregnancy. It makes the mucus in the lower part of the reproductive tract resistant to the ascent of sperm and also alters the lining of the womb. Both hormones cause changes in the breasts and elsewhere in the body. Most oral contraceptives contain a combination of estrogen and progesterone. Demographics of the United States. Largest ancestry groups by county, 2000.
As of April 15, 2014, the United States has a total population of 317.8 million,[1] making it the third-most populous country in the world.[2] It is very urbanized, with 82% residing in cities and suburbs as of 2011 (the worldwide urban rate is 52%).[3] California and Texas are the most populous states,[4] as the mean center of U.S. population has consistently shifted westward and southward.[5] New York City is the most populous city in the United States.[6] The total fertility rate in the United States estimated for 2012 is 1.88 children per woman,[8] which is below the replacement fertility rate of approximately 2.1.
There were over 158.6 million females in the United States in 2009. The number of males was 151.4 million. At age 85 and older, there were more than twice as many women as men. The United States Census Bureau defines White people as those "having origins in any of the original peoples of Europe, the Middle East, or North Africa. United States Census Bureau. The United States Census Bureau (officially the Bureau of the Census, as defined in Title 13 U.S.C. § 11) is a principal agency of the U.S.
Federal Statistical System responsible for producing data about the American people and economy. The primary mission of the Census Bureau is conducting the U.S. Census every ten years, which allocates the seats of the U.S. House of Representatives to the states based on their population.[1] In addition to the decennial census, the Census Bureau continually conducts dozens of other censuses and surveys, including the American Community Survey, the U.S.
Economic Census, and the Current Population Survey.[1] Furthermore, economic and foreign trade indicators released by the federal government typically contain data produced by the Census Bureau. The Census Bureau is situated within the U.S. Legal mandate[edit] By law the Census Bureau must count everyone and submit state population totals to the U.S. Data collection[edit] U.S. Uses of census data[edit] Abortion in the United States. Abortion in the United States, and abortion-related issues, are the subject of intense public and political debate and discussion in the United States.
Various anti-abortion laws had been on every state statute book since at least 1900. Abortion was prohibited in 30 states and legal under certain circumstances (such as pregnancies resulting from rape, incest, and date drug.) in 20 states. The Supreme Court 1973 decision Roe v. Wade invalidated all of these laws, and set guidelines for the availability of abortion. Roe established that the abortion right "must be considered against important state interests in regulation That decision was modified by the 1992 case Planned Parenthood v. Before Roe v. The pro-choice position was most popular in the early to mid-1990s [3] and has since declined somewhat to levels slightly above its popularity in the late 1970s and 1980s.[3] Terminology[edit] History[edit] Pre-1960s[edit] WOA!! World Ovepopulation Awareness.