Question 1
Exposure to teratogens during the period of the zygote usually results in
◦ major defects in bodily structure.
◦ minor defects in bodily structure.
◦ improperly functioning body systems.
◦ spontaneous abortion (miscarriage).
Question 2
For the birth of a first child, the first stage of labor usually lasts
◦ 1 to 2 hours.
◦ 3 to 8 hours.
◦ 12 to 24 hours.
◦ 48 hours.