Which feature is modeled in the diagram? A convergent boundary is formed. Two plates are forming a divergent boundary. Continental plates are sliding past each other. Several mid-ocean ridges are formed on Earth’s surface.

Anurse is caring for a 42-year-old client who is scheduled for an amniocentesis during the fifteenth week of gestation because of concerns regarding down syndrome. what other fetal problem does an examination of the amniotic fluid reveal at this time?