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Approximately what percentage of babies were delivered by midwives in the United States in 2016?  

Males over 40 who become fathers increase the risk of having offspring that        

Which of the following terms refers to an outer layer of cells that develops during the germinal period and later provides nutrition and support for the embryo?      

Advanced maternal age confers a much greater risk of having a baby with ________.        

Which of the following is an example of postpartum depression?        

Threadlike structures that contain DNA are defined as  

________ stresses that behavior is strongly influenced by biology, is tied to evolution, and is characterized by critical or sensitive periods.  

Pregnant women under stress are more likely to        

Lev Vygotsky contended that cognitive skills are        

The largest number of cesarean sections is performed in