________ is the bacterial invader that causes stillbirths and mental retardation when it crosses the placenta and attacks the fetus.

Question

Quizplus · Accepted Answer

Syphilis is a sexually transmitted infection caused by the bacterium Treponema pallidum. If left untreated, it can cross the placenta and lead to a number of serious complications in the fetus, including stillbirth and mental retardation. HIV and Rubella can also cause serious fetal complications, but they do not directly attack the fetus in the same way as syphilis. Thalidomide is a medication known to cause birth defects when taken during pregnancy, but it is not a bacterial invader. Streptococcus can cause various infections but does not typically cause stillbirth or mental retardation in fetuses.

________ Is the Bacterial Invader That Causes Stillbirths and Mental