In vitro fertilization is a possible alternative technique for conception
A) in which embryos are frozen for several years and then placed directly into a substitute
mother's uterus.
B) involving the implantation of a fertilized egg into the uterus of a substitute mother who
delivers the baby.
C) in which a male donor's frozen sperm are thawed and placed directly into a woman's
uterus.
D) that involves uniting sperm and egg in a petri dish and then placing several embryos in
the uterus.
D
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When Cameron was born, he was blue from head to toe as a result of having his umbilical cord wrapped around his neck. This severe restriction of oxygen to his body is called
a. anorexia. c. anomaly. b. anoxia. d. animism.
Macie and Darius have a new baby girl. Although they complain that the baby wakes them a lot at night, the truth is the baby probably sleeps as much as ______ of the time
A) 25 percent B) 50 percent C) 75 percent D) 80 percent