In the final three months of pregnancy, the fetus
A) is especially vulnerable to teratogens.
B) gains less than 3 pounds.
C) grows 7 inches.
D) reduces its body fat to help with temperature regulation.

Question

Quizplus · Accepted Answer

During the final three months of pregnancy, the fetus grows approximately 7 inches, from around 14-15 inches long to around 20 inches long at birth. The other options are incorrect. The fetus is vulnerable to teratogens throughout pregnancy, not just the final three months, but this period is a critical time for brain development. The fetus gains most of its weight during the final three months, approximately half a pound per week, so option B is incorrect. Option D is also incorrect, as the fetus increases its body fat during the final three months to assist with temperature regulation after birth.

In the Final Three Months of Pregnancy, the Fetus