(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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Explanation:
Fertilization take place only once in a month in human female because only one egg in released from ovary every mont. And after fertilization with sperm one time no more egg is released for the nine months and after that then every month one egg is released.
(i) The scientific name of womb is 'uterus'. (ii) The scientific name of birth canal is 'vagina. PREVIOUSFertilisation in humans can occur only once in a month.
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