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(a) Fertilisation in humans can occur only once in a month. Why ?(b) What is the scientific name of (i) womb, and (ii) birth canal ? |
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Answer» (a) Fertilisation in humans can occur only once in a month because ovulation takes place once every month i.e. an egg is released once every month by ovary. (b) (i) Uterus. (ii) Vagina. |
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