(d) Name the contraceptive device used by human females which is put over the cervix.

Q. (c) Name the contraceptive device used by the human males which acts as a sheath over the male organ and traps the sperms in it.

Q. The human males use a device X made of a very thin rubber sheet as a covering on the male organ to prevent pregnancy. This device traps the gametes Y in it. In order to prevent pregnancy, the human females use a device Z which is a circle of rubber with a metal spring around it. The device Z is put inside the vagina to cover the cervix. It stops Y from going into the uterus.
(a) What is device X?
(b) What are Y?
(c) Name the device Z.
(d) What is the general name of these methods of birth control (or preventing pregnancy)?
(e) The use of which contraceptive device, X or Z, can protect the persons from sexually transmitted diseases?

Q. Name any two contraceptive methods used by human female.

Q. Assertion :Copper-T is an effective contraceptive device in human females. Reason: Copper-T prevents passage of sperms from vagina upwards into fallopian tubes.

Q. (a) Name any two copper releasing IUDs.
(b) Explain how do they acts as effective contraceptive in human females.