Describe any three manners by which fertilization can be avoided
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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.
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.
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