A pregnant woman has an ultrasound to assess the progress of the twins she is expecting. Her doctor says, From what I can see on the screen, Ms. Black, it looks as if you will have a boy and a girl. In what stage of development must the twins be?
a. gamete
b. zygote
c. embryo
d. fetus
Question 2
A pregnant woman regularly uses cocaine and heroin throughout her pregnancy. Chances are that her baby will:
a. Have Down syndrome
b. Have Tay-Sachs disease
c. Be born late and have an exceptionally large head
d. Be born prematurely and show unusual irritability
Acromegaly. Photo of a woman illustrating the enlarged skull, jaw, and hands typical of acromegaly.
Hippocampal Volumes of Pairs of Monozygotic Twins
Women who are monozygotic twins and have the same genes are more similar in their marital happiness
Leonardo da Vinci, Study of a Woman's Head or of the Angel of the Vergine delle Rocce.
Pregnant and Lactating Women, Children, the Ill, and Older Adults Are at the Highest Risk
Cutaway views of (a) the breast of a woman who is not pregnant and (b) the breast of a lactating wom