After twins are conceived, their chance of survival until birth depends on the prenatal circumstances. An early sonogram might reveal two developing organisms, but later only one embryo continues to grow. This is referred to as the _____ twin phenomenon.
A) vanishing
B) disappearing
C) terminated
D) missing

Question

Quizplus · Accepted Answer

The term commonly used to describe the scenario in which one of the twins disappears during the pregnancy is "vanishing twin phenomenon". The other options, such as "disappearing", "terminated", or "missing", are not typically used in this context.

After Twins Are Conceived, Their Chance of Survival Until Birth