(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.
Teratogen: Any agent that can disturb the development of an embryo or fetus. Teratogens may cause a birth defect in the child. Or a teratogen may halt the pregnancy outright. The classes of teratogens include radiation, maternal infections, chemicals, and drugs.