Biology, asked by MrThakur14Dec2002, 1 year ago

Describe three manners in which fertilisation of human ovum by a sperm can be prevented.

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▪ Class 12th. ​

Answers

Answered by pragyan12
2

1.copper T wire.

2.condoms or cervical caps.

3.spermicides.

4.pulling out of penis before ejection.

Answered by Purwa2995
11

Some of the contraceptive methods by which fertilisation of ovum by sperm can be prevented are:

Barrier method → In this method, the fertilization of ovum and sperm is prevented with the help of barriers. Condoms are barriers that prevent pregnancy.

Oral contraceptives →  These are taken orally. They contain hormones—either progesterone or progesterone−oestrogen combination and prevent the release of eggs and thus fertilisation.

Intra uterine devices   (IUDs) : They release hormones to cause phagocytosis of sperms or they release copper ions to decrease sperm motility.

Surgical methods : Include vasectomy (removal of a part of the vas deferens in males) and tubectomy (removal of a part of the fallopian tubes in females).

Hope this will help you(◕‿◕)

 


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