The diaphragm is an example of a(n) ____.

A) rhythm method
B) mechanical barrier
C) oral contraceptive
D) IUD
E) chemical barrier

Diaphragm

A dome-shaped, muscular partition separating the thorax from the abdominal cavity, playing a major role in breathing.

Mechanical Barrier

A physical method of contraception or protection, such as condoms or diaphragms, that prevents sperm from reaching the ovum.

Chemical Barrier

A type of defense mechanism involving chemicals that deter or neutralize potential threats, used by organisms or in controlled environments.