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प्रश्न
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?
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उत्तर
(a) The device X is condom.
(b) Y represents sperms.
(c) The device Z is copper-T.
(d) The general name of these methods of birth control is called barrier method or IUCD (Intrauterine Contraceptive Device).
(e) Using condoms (X) during sexual intercourse can protect a person from sexually transmitted disease.
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संबंधित प्रश्न
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In the surgical method of birth control available for males, the structures A in the reproductive system are cut and ligated (tied up) at both ends. This prevents the reproductive cells B from coming out from the organs C where they are made in the male body. Since B cannot come out from the male body, they cannot fuse with cell D in the body of a female and hence pregnancy is prevented.
(a) What are structures A?
(b) What are cells B?
(c) Name the organs C.
(d) What is cell D?
(e) What is the name of this surgical procedure for birth control available to males?
In the surgical method of birth control available for human females, the structures P in the reproductive system are cut and ligated (tied up) properly at both ends. This prevents the reproductive cell Q released by an organ R from entering the structures P so that Q is not available to fuse with another reproductive cell S coming from the male reproductive system. In this way, pregnancy is prevented.
(a) What are structures P?
(b) What is cell Q?
(c) Name the organ R.
(d) What is the reproductive cell S?
(e) What is the name of this surgical method of birth control available to females?
A, B and C are three common STDs. A and C are caused by bacteria whereas B is caused by a virus D. The virus D reduces the immunity of the infected person to such a low level that the person can die of even very mild diseases.
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(b) What is B?
(c) Name the virus D?
(d) How can A, B and C be caused?
(e) Out of A, B and C, which one does not have a definite cure as yet?
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Reproductive health includes ______.
The period of pregnancy is called ______
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What is the number of chromosomes in the zygote?
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