Question 1
As compared with developing nations, the rates of miscarriage, stillbirth, and abnormalities in fetal brain development have been lowered because iodine has been added to ____.
◦ salt
◦ school lunches
◦ bread
◦ the water supply
Question 2
At the end of the eighth week, the embryo is only one inch long and weighs just one gram. According to the text, what can the embryo now do?
◦ step in place
◦ suck its thumb
◦ vocalize
◦ respond to touch