46. Why did Berkeley think that Lockeâs philosophy led to skepticism? a. Locke was an atheist and Berkleyâs purpose is to combat atheism. b. Lockeâs postulation of âmaterial substancesâ as causes of our ideas make the causes of our ideas unknowable. c. Lockeâs distinction between primary and secondary qualities is unacceptable. d. Locke failed to distinguish between primary and secondary qualities. 47. What does âto be is to be perceived â mean? a.
Amniocentesis is a procedure used to obtain a small sample of the amniotic fluid that surrounds the fetus during pregnancy. Amniotic fluid is a clear, pale yellow fluid made by the fetus. The fluid protects the fetus from injury and helps to regulate the temperature of the fetus.
Amniocentesis is usually performed between 14 and 20 weeks. Some medical facilities may perform amniocentesis as early as 11 weeks. Amniocentesis can be used later in the third trimester for a few reasons.Your healthcare provider may recommend the procedure if your membranes have ruptured prematurely, in order to assess for uterine infections.he risk of miscarriage ranges from 1 in 400 to 1 in 200. In facilities where amniocentesis is performed regularly, the rates are closer to 1 in 400. Miscarriages can occur because of infection in the uterus, water breaking, or labor being induced prematurely.