Question 1
There is a tendency for an infant to react to a stimulus with generalized, whole-body movements at first, with responses becoming more specific and refined later. This trend is referred to as which of the following?
◦ body-in-total trend
◦ cephalocaudal trend
◦ proximodistal trend
◦ gross-to-specific trend
Question 2
To state that a particular teratogen has an effect during a "critical period" means that it:
◦ can affect organ systems that are critical for sustaining life
◦ can cause the mother to become critically ill and perhaps die
◦ exerts its effect on development only during a particular stage of development
◦ will require the mother to be hospitalized, most likely in a critical care unit