Which of the following is a unique feature of the birth control sponge?
A) It emits either copper or the hormone progestin.
B) It contains the spermicide nonoxynol-9 (N-9).
C) It has an unlimited shelf life.
D) It slows the rate of ovum transport.

Question

Quizplus · Accepted Answer

The unique feature of the birth control sponge is that it contains the spermicide nonoxynol-9 (N-9). While other forms of birth control may also contain N-9, the sponge is the only form of birth control that specifically utilizes this spermicide in combination with a physical barrier. The other options are not unique to the birth control sponge. Option A is a feature of some forms of intrauterine devices (IUDs) and hormonal contraceptives. Option C is not true, as the birth control sponge has a limited shelf life. Option D is a feature of some forms of hormonal contraceptives.

Which of the Following Is a Unique Feature of the Birth