(404) 330-6000. Fax Number: (404) 658-6720. Originally named Terminus (to mark the end of the rail line) and later renamed Marthasville (in honor of Governor Wilson Lumpkin's daughter), Atlanta, the state's capital and the county seat for Fulton County, earned its current name in 1848.he cultural center for the state, Atlanta houses several arts venues and attractions, including the Atlanta Ballet, the High Museum of Art, the Martin Luther King, Jr. Center and Zoo Atlanta.
Effects of teratogen on critical period. The organism is most vulnerable to teratogens during the embryonic period-ex: the most vulnerable period for the heart is between 20 and 40 days after conception.
Teratogens are substances or other factors that can cause congenital abnormalities, which are also called birth defects. Usually these abnormalities arise in the third to eighth weeks of pregnancy, when the major organ systems are forming.