Babies born before 38 weeks are classified as

_____ cells, which may be used to grow new organs or tissues for transplant or to repair neurological damage, develop during the germinal period.

The ultrasound report tells Shaniqua and Carlotta that their developing infant is about one inch long and has eyes, a nose, lips, little arms and legs, and a beating heart. Given this information, the current period of prenatal development is the _____ period.

During critical periods

The functioning, but not the structure, of the central nervous system is vulnerable throughout the _____ period.

Moral and ethical issues in prenatal development and their associated biological and medical practices are studied in

Mitzi's child has facial deformities, a smaller than normal head, heart defects, learning difficulties, and delayed growth. If these defects can be traced to a teratogen ingested by Mitzi during pregnancy, it MOST likely would have been

_____ is carried by recessive genes and inherited when a child inherits two recessive genes.

During the embryonic period of prenatal development, the embryo