Question 1
Heart defects are especially common when pregnant mothers are exposed to a teratogen during which prenatal period?
◦ the germinal period
◦ the embryonic period
◦ the fetal period
◦ the last two weeks before birth
Question 2
If a pregnancy test can detect pregnancy within two weeks after fertilization, it most likely works by:
◦ detecting the hormone human chorionic gonadotropin in the woman's urine
◦ detecting a rise in the woman's body temperature from 98.6 to about 99.3
◦ detecting the presence of a much higher percentage of alpha brain waves during the woman's sleep cycles
◦ detecting a dramatic increase in the acidity of the woman's urine