Some estimates claim that approximately ______ percent of all pregnancies result in spontaneous abortion,many due to chromosomal abnormalities.
A)10
B)20
C)30
D)40
E)50

Question

Quizplus · Accepted Answer

Estimates suggest that up to 50 percent of all pregnancies end in spontaneous abortion, often due to chromosomal abnormalities. This high percentage includes many early pregnancies that may end before a woman even realizes she is pregnant.

Some Estimates Claim That Approximately ______ Percent of All Pregnancies